%0 Journal Article %A Frank Harary %A Abbe Mowshowitz %A Allen Schwenk %T Line minimal Boolean forests %J Colloquium Mathematicum %D 1971 %P 167-173 %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-37-1-167-173/ %R 10.4064/cm-37-1-167-173 %G en %F 10_4064_cm_37_1_167_173