%0 Journal Article %A S. Ya. Startsev %T Laplace invariants of hyperbolic equations linearizable by a differential substitution %J Teoretičeskaâ i matematičeskaâ fizika %D 1999 %P 237-247 %V 120 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1999_120_2_a4/ %G ru %F TMF_1999_120_2_a4