Hollstein (Dutch and Flemish), Vol. 44, 1996, p. 298-299, n. 1518-1524);Hollstein (Dutch and Flemish), Vol. 46, 1995, p. 247-248, n. 1518-1524; Hollstein (Dutch and Flemish), Vol. 21, 1980, p. 172-173, n. 545-552; Hollstein (Dutch and Flemish), Vol. 22, 1980, p. 155, n. 545-552.