J. Martzloff, JC-1644: indétermination céleste et réforme permanente: la construction chinoise officielle du temps quotidien discret à partir d'un temps mathématique caché, linéaire et continu. Sciences, techniques et civilisations du Moyen Âge à l'aube des Lumières 11 Explains the means of computing mean and true lunisolar dates for a variety of famous li systems throughout Chinese history. While comprehensive, this work suffers from two limitations: (1) its focus is purely calendrical, and thus neglects, for example, positional, eclipse and planetary li) Martzloff attempts to represent actors' procedures in symbolic algebra, which, Le calendrier chinois: structure et calculs, 104 av, 2009.

N. Sivin, T'oung Pao 2d ser This article has provided the field with the metaphor of interlocking gears with which we still talk about the subject, offering a more-or-less complete account of the Triple Concordance system (Santong li ???) of circa a.d. 5 in terms, once again, of calendrics. It is also one of the only articles to speak seriously about the very real possibility that the Chinese utilized Mesopotamian-like eclipse cycles. This article is old and has several limitations: (1) it, again, neglects positional, eclipse and planetary li) it, again, makes a difficult topic more difficult; (3) the discussion of eclipse cycles is completely speculative, Cosmos and Computation in Early Chinese Mathematical Astronomy, pp.1-73, 1969.

Y. Kiyosi and ?. , Astronomical Tables in China, from the Han to the T'ang Dynasties, Ch?goku ch?sei kagaku gijutsushi no kenky? ?? ??????????, pp.445-492, 1963.

L. Hongtao, ?. Gudai-lifa-jisuanfa, and ?. , Tianjin: Nankai daxue chubanshe This wonderful little Chinese gem explains every parameter and every step of every system from the Han ? (206 b.c. ? a.d. 220) to the Sui ? (a.d Limitations: relatively few practice examples, pp.581-618, 2003.