Published in Phegea, in 1990, in volume 18, issue 1, pages 1-6
Published in Phegea, in 1990, in volume 18, issue 1, pages 7-16
Published in Phegea, in 1990, in volume 18, issue 1, pages 17-18
On the butterflies at Gullegen (West Flanders) 1984-1987 (Lepidoptera: Hesperioidea & Papilionoidea)
Published in Phegea, in 1990, in volume 18, issue 1, pages 19-21
Published in Phegea, in 1990, in volume 18, issue 1, pages 23-26
Published in Phegea, in 1990, in volume 18, issue 1, pages 27-29
Published in Phegea, in 1990, in volume 18, issue 1, pages 31-32
Published in Phegea, in 1990, in volume 18, issue 1, pages 33-36
Published in Phegea, in 1990, in volume 18, issue 1, pages 37-41
Published in Phegea, in 1990, in volume 18, issue 2, pages 45-56
Published in Phegea, in 1990, in volume 18, issue 2, pages 57-58
Published in Phegea, in 1990, in volume 18, issue 2, pages 59-63
Published in Phegea, in 1990, in volume 18, issue 2, pages 65-66
Published in Phegea, in 1990, in volume 18, issue 2, pages 67-68
Published in Phegea, in 1990, in volume 18, issue 2, pages 69-70
Published in Phegea, in 1990, in volume 18, issue 2, pages 71-88
Published in Phegea, in 1990, in volume 18, issue 3, pages 125-127
Published in Phegea, in 1990, in volume 18, issue 3, pages 133-136
Published in Phegea, in 1990, in volume 18, issue 3, pages 137-140
Published in Phegea, in 1990, in volume 18, issue 3, pages 141-142
Published in Phegea, in 1990, in volume 18, issue 3, pages 143-148
Published in Phegea, in 1990, in volume 18, issue 4, pages 89-124
Published in Phegea, in 1990, in volume 18, issue 4, pages 149-155
Coenotephria berberata ((Denis & Schiffermuller) 1775), new in the Kempen (Lepidoptera: Geometridae)
Published in Phegea, in 1990, in volume 18, issue 4, pages 157-158
Published in Phegea, in 1990, in volume 18, issue 4, pages 159-166
Published in Phegea, in 1990, in volume 18, issue 4, pages 167-168
Published in Phegea, in 1990, in volume 18, issue 4, pages 169-190