%0 Journal Article %A Trjitzinsky, W. J. %T Singular integral equations of the first kind and those related to permutability and iteration %J Journal de Mathématiques Pures et Appliquées %D 1947 %P 283-351 %V 26 %U http://www.numdam.org/item/JMPA_1947_9_26__283_0/ %G en %F JMPA_1947_9_26__283_0