Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 9-14

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 15-18

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 19-22

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 23-28

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 29-34

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 35-44

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 45-60

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 61-68

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 69-82

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 83-102

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 103-109

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 115-144

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 145-174

Published in Revista De La Academia Canaria De Ciencias, in 2008, in volume 20, issue 3, pages 175-193