%0 Journal Article %A Hermann Karcher %T The triply periodic minimal surfaces of Alan Schoen and their constant mean curvature companions. %J Manuscripta mathematica %D 1989 %P 291-358 %V 64 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155411/ %F MM2_1989__64_2_155411