%0 Journal Article %A Mahr, Bernd %T Algebraic complexity of path problems %J RAIRO. Informatique théorique %D 1982 %P 263-292 %V 16 %N 3 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1982__16_3_263_0/ %G en %F ITA_1982__16_3_263_0