Published in Revista de la Academia Canaria de Ciencias, in 2011, in volume 22, issue 3, pages 199-213

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 11-24

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 25-28

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 29-38

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 39-44

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 45-48

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 59-92

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 93-106

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 107-109

Published in Revista De La Academia Canaria De Ciencias, in 2011, in volume 23, issue 3, pages 113-143