W 835 F 1 


NEUGEBAUER, 
Otto 

I 

I1 

Abu Shaker's "Chronography". A Treatise of the 13th Century 

, on Chronologieal, Ca1endrica1, and Astronomical 1.'Iatters, 
written by a Christian Arab, preserved in Ethiopic. A 
Summary by otto Neugebauer. -Wien: Ver1.d.Österr.Akad.d. 

80

Wiss.1988. 198 5.,8 Taf. 
(Sitzungsberichte. Qsterr.Akad.d.Niss. Phil.-hist. 
Klasse. 498.)