Beard, R. E. Risk theory : the stochastic basis of insurance / by R.E. Beard, T. Pentikainen, E. Pesonen - 3rd ed. - London : Chapman & Hall, 1977 - iii-xvi,195 p. : ill. ; 23 cm. - Monographs on statistics and applied probability . ISBN: 041225980x Subjects--Topical Terms: Risk (Insurance)--Mathematical models