Published in Iberus, in 1993, in volume 11, issue 1, pages 49-56

Published in Iberus, in 1993, in volume 11, issue 1, pages 57-60

Published in Iberus, in 1993, in volume 11, issue 1, pages 61

Published in Iberus, in 1993, in volume 11, issue 2, pages 1-25

Published in Iberus, in 1993, in volume 11, issue 2, pages 45-57