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V. F. Vanacker and F. Debrabandere
1987-02-20 Volume 60 • Issue 1 • 1987 • 3–6
1987-02-20 Volume 60 • Issue 1 • 1987 • 7–10
1987-02-20 Volume 60 • Issue 1 • 1987 • 12–13
R. Willemyns
1987-02-20 Volume 60 • Issue 1 • 1987 • 15–21
1987-02-20 Volume 60 • Issue 1 • 1987 • 11–11
J. Germain
1987-02-20 Volume 60 • Issue 1 • 1987 • 23–81
J. Goossens
1987-02-20 Volume 60 • Issue 1 • 1987 • 83–99
A. Marynissen
1987-02-20 Volume 60 • Issue 1 • 1987 • 101–120
R. Van Den Eeckhaut
1987-02-20 Volume 60 • Issue 1 • 1987 • 121–224