M. Hoppe, Fred et Seneta, Eugene, Bonferroni-type inequalities and the methods of indicators and polynomials, Advances in applied probability , 22(1), 1990, pp. 241-246
A difficulty in the application [5] of the method of polynomials as exposited by Galambos is investigated. The method, recast as the method of indicators, in a form due originally to Rényi [6], is applied to the situation of non-constant coefficients.