%0 Journal Article %A Pitman, James W. %A Yor, Marc %T On the lengths of excursions of some Markov processes %J Séminaire de probabilités de Strasbourg %D 1997 %P 272-286 %V 31 %I Springer - Lecture Notes in Mathematics %U http://www.numdam.org/item/SPS_1997__31__272_0/ %G en %F SPS_1997__31__272_0