%0 Journal Article %A Kramosil, Ivan %T Statistical testing procedure for lengths of formalized proofs %J Kybernetika %D 1980 %P 209-224 %V 16 %N 3 %U http://geodesic.mathdoc.fr/item/KYB_1980_16_3_a0/ %G en %F KYB_1980_16_3_a0