1. On discrete distributions arising out of methods of ascertainment;Rao;Sankhya: The Indian Journal of Statistics, Series A (1961–2002),1965
2. On weighted distributions;Mahfoud,1982
3. Some sampling problems in technology;Cox,1969
4. Moment distributions of phase type;Bladt;Stochastic Models,2011
5. Probability distributions of phase-type;Neuts,1975