%0 Journal Article %A Lyon, Herbert C. %T Incompressible Surfaces in the Boundary of a Handlebody–an Algorithm %J Canadian journal of mathematics %D 1980 %P 590-595 %V 32 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-045-6/ %R 10.4153/CJM-1980-045-6 %F 10_4153_CJM_1980_045_6