Knox, H. M. «Religious Segregation in the Schools of Northern Ireland». British Journal of Educational Studies, 10 1973. "...[S]egregated schooling, although in theory open to all, is in practice availed of by virtually only one denomination...." Also refers to pre-Partition religious schools which retained their exclusively Catholic demographics after Partition.
teachers.tv
«Religion In Schools». . The Big Debate, Min:0:09:29 and 0:11:52"'", 29-01-2008. « », in which Rabbi Dr Jonathan Romain says (at 0:09:29): "If you have separate Jewish, Catholic, Muslim, Sikh, Hindu schools, essentially you’re segregating children, you’re separating children" and (at 0:11:52): "It’s a religious apartheid society we’re creating."