Published in Apex (Brussels), in 1987, in volume 2, pages 13-23

Created: 2013-07-27, modified: 2013-07-27

Published in Apex (Brussels), in 1987, in volume 2, pages 25-58

Created: 2013-07-27, modified: 2013-07-27

Published in Apex (Brussels), in 1987, in volume 2, pages 59-68

Created: 2013-07-27, modified: 2013-07-27

Published in Apex (Brussels), in 1987, in volume 2, pages 99-113

Created: 2013-07-27, modified: 2013-07-27