On the number of two-line and three-line latin rectangles

C. R. Pranesachar On the number of two-line and three-line latin rectangles - an alternative approach. 79-86 1982 38 Discrete Mathematics 1 http://dx.doi.org/10.1016/0012-365X(82)90171-6 db/journals/dm/dm38.html#Pranesachar82