| Hydro delft nr.81: Special issue on mathematical models (1993) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 81. Delft Hydraulics Laboratory: Delft. 1-31 pp.  |
| Hydro delft nr.82 (1994) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 82. Delft Hydraulics Laboratory: Delft. 1-12 pp.  |
| Hydro delft nr.83 (1995) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 83. Delft Hydraulics Laboratory: Delft. 1-9 pp.  |
| Hydro delft nr.84 (1995) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 84. Delft Hydraulics Laboratory: Delft. 1-12 pp.  |
| Hydro delft nr.85 (1996) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 85. Delft Hydraulics Laboratory: Delft. 1-16 pp.  |
| Hydro delft nr.86 (1998) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 86. Delft Hydraulics Laboratory: Delft. 28 pp.  |
| Hydro Delft nr.87 (1999) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 87. Delft Hydraulics Laboratory: Delft.  |
| Hydro delft nr.88 (1999) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 88. Delft Hydraulics Laboratory: Delft. 1-11 pp.  |
| Hydro delft nr.89 (2000) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 89. Delft Hydraulics Laboratory: Delft. 1-12 pp.  |
| Hydro delft nr.90 (2001) . Hydro Delft: Publication of the Delft Hydraulics Laboratory, 90. Delft Hydraulics Laboratory: Delft. 1-20 pp.  |