Abecasis, F. M. <br/><br/>
Hysteresis in steady free-surface flow / by Fernando Manzan-ares, Abecasis and Antonio Carvalho Quintela. 

 - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil 
 - [5] p. 
 - Technical paper; No.221 / Laboratrorio Nacional de Engenhar-ia Civil .