“…A first solution for this problem could consist in using the classical chi-square (X 2 , for short) test-statistic, or one of its modifications, such as smooth tests (Best, Rayner;1989), or modified chi-square tests (see, for instance, Bolshev, Mirvaliev;1978). However, in the present case this solution is not completely satisfactory, at least form a theoretical point of view.…”