5
Published 1950
Journal / Magazine
8
Book
11
by Meijering, E. P.
Published 1989
Book
13
by Söffing, Werner.
Published 1981
Book
15
by Llull, Ramon, 1232?-1316.
Published 1965
(CARLI) (Other Sources: (SICdb)89244, (UIUdb)302903)
Book
16
(CARLI) (Other Sources: (SICdb)68890, (UIUdb)227758)
Book
17
Book
19
Book
20