@article{04211851,
title = {Factor-union representation of phenotype systems.},
journal = {Mathematica Pannonica},
volume = {1},
year = {1990},
pages = {107-110},
zbl = {0732.92012},
language = {en},
url = {http://dml.mathdoc.fr/item/04211851}
}
Länger, Helmut. Factor-union representation of phenotype systems.. Mathematica Pannonica, Tome 1 (1990) pp. 107-110. http://gdmltest.u-ga.fr/item/04211851/