Ralph of Laon: De abaco [Latin]

Bibliography:

• ed. Nagl, A., in Abhandlungen zur Geschichte der Mathematik, v (1890), 96–133.

See also:

• Other works with the subject 'science'

Author(s):

• Ralph of Laon, -1131/1138

Manuscripts:

• MS. Hatton 108 — 12th century

The above references reflect only the current coverage of the online catalogue and may not be comprehensive.