@article{JRAM_1976__0283_0284_151716,
     author = {Rudolf Wille},
     title = {Subdirekte {Produkte} vollst\"andiger {Verb\"ande.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {53--70},
     publisher = {mathdoc},
     volume = {0283_0284},
     year = {1976},
     zbl = {0336.06007},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__0283_0284_151716/}
}