+ benumb_t.h benumb.c bechordal.c bera.c beutil.c \
+ bera.h bechordalspill.c bechordal_main.c \
+ becopyoptmain.c becopyopt.c becopyheur.c beifg.c \
+ becopyilp.c becopystat.c bearch.c bechordal_draw.c \
+ bechordal_draw.h beirgmod.c beirgmod.h benode.c benode_t.h \
+ bessadestr.c beifg_std.c bespill.c bespillbelady.c bespillilp.c beuses.c \
+ beconstrperm.c belower.c belower.h
+