Effects of bottom-height changes on maximal exchange-flow estimates in channels with quadratic shape cross sectionsLaanearu, Janek; Davies, Peter A.; Koppel, TiitProceedings of 32nd Congress of IAHR : Venice, Italy, July 1-6, 20072007 / ? p https://www.iahr.org/library/infor?pid=15300

On the alternative equations of water hammerKoppel, Tiit; Ainola, LeoProceedings of 32nd Congress of IAHR : Venice, Italy, July 1-6, 20072007 / [9] p