(NaLGEBRAI^ESKIJ PODHOD K PROBLEME RASKRASKI PLOSKIH GRAFOW (B/s - (NdONEC(B, (NgEORGIJ aFANASXEWI^s; (N{OR(B, (NnAUM zUSELEWI^s; (NiNSTITUT KIBERNETIKI an ussrs ((NkIEW (B:s (NnAUK(B. (NDUMKA(B,s, 1982)
Keywords: (NgRAFOW TEORIQ (B[(NMAT(B.]s