@article{GDZPPN002304457, title = {Maximal Primal Clusters Are Infinite.}, journal = {Mathematische Annalen}, volume = {193}, year = {1971}, pages = {99-120}, zbl = {0251.08008}, url = {http://dml.mathdoc.fr/item/GDZPPN002304457} }
FROEMKE, J. Maximal Primal Clusters Are Infinite.. Mathematische Annalen, Tome 193 (1971) pp. 99-120. http://gdmltest.u-ga.fr/item/GDZPPN002304457/