On use of symmetrical balanced incomplete block design in contruction of sampling design reliasing pre-assigned sets of inclusion probabilities of first two orders
A.arnab,d.roy, On use of symmetrical balanced incomplete block design in contruction of sampling design reliasing pre-assigned sets of inclusion probabilities of first two orders, Communications in statistics. Theory and methods Communications in statistics. Part A. Theory and methods , 19(9), 1990, pp. 3223-3232