Ontario

1. Lumsden, T. W. / Knowles, W. L. C. (1975): General Aspects of Water Supply and Treatment in Ontario. In: Canadian Journal of Civil Engineering / Revue canadienne de génie civil, v. 2, n. 2 ( 1975), pp. 154-161.

   https://doi.org/10.1139/l75-015

2. Krisciunas, Raymond (2000): Two Structural Composite Lumber Bridges in Northwestern Ontario, Canada. In: Structural Engineering International, v. 10, n. 3 (August 2000), pp. 158-160.

   https://doi.org/10.2749/101686600780481446