%0 Journal Article %A W. P. Cherry %A R. L. Disney %T The superposition of two independent Markov renewal processes %J Applicationes Mathematicae %D 1980 %P 567-602 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-17-4-567-602/ %R 10.4064/am-17-4-567-602 %G en %F 10_4064_am_17_4_567_602