Conference paper (2000) - J.A. Roelvink (author), Dano J.A. Roelvink (author), JA Roelvink (author), J. A. Roelvink (author), Jan Adriaan Roelvink (author), D. Roelvink (author), Dano Roelvink (author), RE Uittenbogaard (author), GJ Liek (author)