1. An extended Markov property;Blumenthal, R. M.;Trans. Amer. Math. Soc.,1957
2. First passage times for symmetric stable processes in space;Getoor, R. K.;Trans. Amer. Math. Soc.,1961
3. The distribution of the maximum of partial sums of independent random variables;Kac, Mark;Canad. J. Math.,1950
4. Some remarks on stable processes;Kac, M.;Publ. Inst. Statist. Univ. Paris,1957
5. Random walks with absorbing barriers and Toeplitz forms;Kesten, Harry;Illinois J. Math.,1961