ISBN 3540065016 books & textbook
Quasi-Frobenius Rings and Generalizations: QF-3 and QF-1 Rings (Lecture Notes in Mathematics, 351)
Tachikawa, H. Ringel, Claus M.
Springer /1973-10-24 Paperback / 184 Pages
isbn-10: 3540065016 / isbn-13: 9783540065012