| Year |
Author |
Title |
Pages |
| 2009 |
Artzi, Bat-Ami. |
The secret of the knot: khipu No. 936 from the Maiman collection. Masters thesis, Hebrew University. |
Text: 40 |
| 1969 |
Ascher, Marcia and Robert Ascher. |
Code of ancient Peruvian knotted cords (Quipus). Nature 222(5193):529-533. |
Text: 529; 530; 531; 532; 533; Figures: fig.2 (p.531) |
| 1972 |
Ascher, Marcia and Robert Ascher. |
Numbers and Relations from Ancient Andean Quipus. Archive for History of Exact Sciences 8(4):288–320. http://www.jstor.org/stable/41133342 |
Text: 289 |
| 1978 |
Ascher, Marcia, and Robert Ascher. |
Code of the Quipu: Databook. University Microfilms, Ann Arbor. |
Text: 9 |
| 1988 |
Ascher, Marcia, and Robert Ascher. |
Code of the Quipu: Databook II. University Microfilms, Ann Arbor, Michigan. |
Text: 8 |
| 1949 |
Bennett, Wendell C. |
Mnemonic and Recording Devices. In The Comparative Ethnology of South American Indians, edited by Julien H. Steward, pp. 611-619. Government Printing Office, Washington. |
Text: 617; Figures: pl.54>p.614 |
| 2002 |
Burns Glynn, William. |
Decodificación de Quipus. Banco Central de Reserva del Perú, Lima. |
Text: 153-158 |
| 1927 |
Cajori, Florián. |
A History of Mathematical Notations, Vol. 1. The Open Court Publishing Company, La Salle, Illinois. |
Text: 38; Figures: fig.16 (p.39); fig.17 (p.40) |
| 2010 |
Chirinos Rivera, Andrés. |
Quipus del Tahuantinsuyo: Curacas, Incas y su saber matemático en el siglo XVI. Editorial Commentarios, Lima. |
Text: 238; 294-296; 340 |
| 1957 |
Day, Cyrus L. |
Knots and knot lore: quipus and other mnemonic knots. Western folklore 16:8-26. |
Text: 20 |
| 1967 |
Day, Cyrus Lawrence. |
Quipus and Witches' Knots. University Press of Kansas, Lawrence. |
Text: 15; 17; 18 |
| 2024 |
Florio, C. and Overmann, K.A., 2025. Inka numbers, khipu, and yupana: A reanalysis. Journal of Cognition and Culture, 25(1-2), pp. |
C. and Overmann, K.A., 2025. Inka numbers, khipu, and yupana: A reanalysis. Journal of Cognition and Culture, 25(1-2), pp.128-158. |
Text: 133; Figures: fig.2 (p.130); fig.4 (p.134) |
| 2024 |
Hyland, Sabine. |
Knot Anomalies on Inka Khipus: Revising Locke’s Knot Typology. In IX International Conference on Pre-Columbian and Amerindian Textiles / 9th International Conference on Pre-Columbian and Amerindian Textiles, Museo delle Culture, Milan, 2022, pp. 162-180. Zea Books, Lincoln, Nebraska. |
Text: 166; 167 |
| 1964 |
Jacobsen, Lyle E. |
The Ancient Inca Empire of Peru and the Double Entry Accounting Concept. Journal of Accounting Research 2(2):221-228. |
Text: 223; Figures: fig.1 (p.223) |
| 1951 |
Kimura, Kikuya. |
Quipu and the Ancient Peruvian Culture. Minzokugaku-kenkyu 16(1):55–57. |
Text: 56; Figures: 56 |
| 1925 |
Kreichgauer, P. Dam. |
Bibliograpie: Nordenskiöld: The Secret of the Quipu. Anthropos 20:1193-1194. |
Text: 1193 |
| 1926 |
Kreichgauer, P. Dam. |
Das Rätsel der Quipus. Anthropos 21:618-620. |
Text: 618; 619 |
| 2008 |
Kulmar, Tarmo. |
On the Writing Systems of Ancient Peru: the Possibility of the Quellqa and the Quipu as an Instrument of Power of the Incas. Folklore: Electronic Journal of Folklore, (38), pp.135-144. |
Figures: fig.2 (p.140) |
| 2000 |
Laurencich-Minelli, Laura. |
The Inca 'Quipu'. In The Inca world: the development of Pre-Columbian Perú, AD 1000-1534, edited by Laura Laurencich Minelli, pp. 189-192. University of Oklahoma Press, Norman. |
Text: 190; Figures: fig.167 (p.190) |
| 2002 |
Lavallée, Danièle. |
The Peruvian Quipus. In A history of writing: from hieroglyph to multimedia, edited by Anne-Marie Christin, pp. 190-191. Flamarion, Paris. |
Figures: fig.1 (p.190) |
| 1912 |
Locke, L. Leland. |
The Ancient Quipu, a Peruvian Knot Record. American Anthropologist 14(2):325–332. |
Text: 330; 331; Figures: pl.XXIII>p.328; pl.XXIV>p.330 |
| 1923 |
Locke, L. Leland. |
The Ancient Quipu or Peruvian Knot Record. American Museum of Natural History, New York. |
Text: 8; 15; 16-18; 31; 32; Figures: frontispiece; fig.3>p16 |
| 1928 |
Locke, L. Leland. |
Supplementary notes on the quipus in the American Museum of Natural History. The American Museum of Natural History, New York. |
Text: 43 |
| 1970 |
Mackey, Carol. |
Knot Records in Ancient and Modern Peru. PhD dissertation, Anthropology, University of California, Berkeley. |
Text: 45; 48; 52; 62; 118; 211 |
| 1924 |
Mead, Charles W. |
Old Civilisations of Inca Land. American Museum of Natural History, New York. |
Figures: fig.49 (p.104); fig.50 (p.105) |
| 2022 |
Manuel Medrano. |
Keys to Mathematical Treasure Chests: Andean Khipus" Convergence. |
Text: no page |
| 2024 |
Medrano, Manuel and Ashok Khosla. |
How Can Data Science Contribute to Understanding the Khipu Code? Latin American Antiquity. Published online 2024:1-20. doi:10.1017/laq.2024.5 |
Text: 6 |
| 2024 |
Manuel Medrano, “Historical Notes: Numerical Knots on Andean Quipus,” Mathematics Today 60, no. |
): 212–14. |
Text: 22; Figures: fig.1 (p.22) |
| 2008 |
Moscovich, Viviana. |
Del Número al Cálculo En El Imperio Inca: ElLenguaje y Sus Representaciones. In Lenguajes Visuales de Los Incas, edited by Paola González Carvajal and Tamara L. Bray, pp. 91-101. BAR International Series. |
Text: 92 |
| 2016 |
Moscovich, Viviana. |
El khipu y la yupana: Administración y contabilidad en el imperio Inca. Ediciones El Lector, Arequipa, Peru. |
Text: 66 |
| 1925 |
Nordenskiöld, Erland. |
The Secret of the Peruvian Quipus. Elanders, Gothenburg. |
Text: 22-24; 34; Figures: pl.5 |
| 1950 |
Núñez del Pardo, Óscar. |
El “Khipu” Moderno. In Quipu y Yupana: Colección de Escritos, edited by Carol Mackey, Hugo Pereyra, Carlos Radicati, Humerto Rodriguez, Oscar Valverde, pp. 165-182. Consejo Nacional de Ciencia y Tecnología, Lima. |
Text: 169; Figures: fig.1 (p.169) |
| 2025 |
Overmann, Karenleigh A. |
Western South America: Inka numbers. In Cultural number systems: A sourcebook, pp.243-251. Springer Nature. |
Figures: fig.36.1 (p.244) |
| 2001 |
Pererya Sánchez, Hugo. |
Notas sobre el descubrimiento de la clave numeral de los quipus incaicos. Boletín del Museo de Arqueología y Antropología 4(5):115–123. |
Text: 121-122; Figures: fig.4 (p.120) |
| 1925 |
Preuss, K. Th. |
Literarische Besprechungen: L. Leland Lock, The Ancient Quipu and Erland Nordenskiöld, The Secret of the Peruvian Quipus. Zeitschrift für Ethnologie 57:157-158. |
Text: 157 |
| 1949 |
Radicati di Primeglio, Carlos. |
Introducción al estudio de los quipus. Documenta, Revista de la Sociedad Peruana de Historia 2(1):244-339. |
Text: 254 |
| 1964 |
Radicati di Primeglio, Carlos. |
La seriación como posible clave para descifrar losquipus extranumerales. In Estudios sobre los quipus, edited by Gary Urton, pp. 155–264. Universidad Nacional Mayor de San Marcos, Lima. |
Text: 165 |
| 1976 |
Radicati di Primeglio, Carlos. |
El sistema contable de los Incas: Yupana y Quipu. In Estudios sobre los quipus, edited by Gary Urton, pp. 265-354. Universidad Nacional Mayor de San Marcos, Lima. |
Text: 316-317; 318; 330; 349; 350 |
| 2025 |
Salas Garcia, José Antonio. |
La Interpretación Lingüística de los Quipus. Ernst & Young, Lima, Peru. |
Text: 210; Figures: 212 |
| 1941 |
Schedl, Armando. |
La cuerda con nudos o quipu. Revista Geografica Americana 15:17-20. |
Figures: 18; 19 |
| 1929 |
Schmidt, Max. |
Kunst und Kultur von Peru. Impropylaen-Verlagzu, Berlin |
Text: 96 |
