A note on the problem of finding a (3,9)-cage. Wong, P.K. — 1985 International Journal of Mathematics and Mathematical Sciences
A regular graph of girth 6 and valency 11. Wong, P.K. — 1986 International Journal of Mathematics and Mathematical Sciences
On certain regular graphs of girth 5. O'Keefe, M.; Wong, P.K. — 1984 International Journal of Mathematics and Mathematical Sciences