%0 Journal Article %A Cid Tortuero, Consuelo %A Saiz Villanueva, María Elena %A Cerrato Montalbán, Yolanda %T Comment on "Interplanetary conditions leading to superintense geomagnetic storms (dst ≤ -250 nt) during solar cycle 23" by E. Echer et al. %D 2008 %@ 0094-8276 %U http://hdl.handle.net/10017/29202 %K Solar physics %K Astrophysics %K Astronomy %K Magnetic fiels %K Geomagnetic storms %K Solar cycle %K Ciencia %K Fisica %K Physics %~ Biblioteca Universidad de Alcala