David L. Dowe «On the existence of sequences of co-prime pairs of integers». J. Austral. Math. Soc., 47, 1989, pàg. 84–89. DOI: 10.1017/S1446788700031220.
Patrick Cégielski; François Heroult, Denis Richard «On the amplitude of intervals of natural numbers whose every element has a common prime divisor with at least an extremity». Theoretical Computer Science, 303, 1, 2003, pàg. 53–62. DOI: 10.1016/S0304-3975(02)00444-9.
