1. A singular Cauchy problem and generalized translations;Braaksma,1975
2. Generalized translation operators associated with a singular differential operator;Braaksma,1974
3. On the equation of Euler-Poisson-Darboux;Bresters;SIAM J. Math. Anal.,1973
4. On a generalized Euler-Poisson-Darboux equation;Bresters;SIAM J. Math. Anal.,1978
5. Integral Transforms of Generalized Functions;Bryčkov,1977