Problems #51 and #52.
Semigroup forum, Tome 13 (1976), p. 281
Cet article a éte moissonné depuis la source European Digital Mathematics Library
@article{SF_1976__13_134222,
author = {B. Fuchssteiner},
title = {Problems #51 and #52.},
journal = {Semigroup forum},
pages = {281--281},
year = {1976},
volume = {13},
url = {http://geodesic.mathdoc.fr/item/SF_1976__13_134222/}
}
B. Fuchssteiner. Problems #51 and #52.. Semigroup forum, Tome 13 (1976), p. 281. http://geodesic.mathdoc.fr/item/SF_1976__13_134222/