Error message

Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2405 of /home/ull.es/fd/digeme/webpages/includes/menu.inc).

 On Riemannian manifolds with G_2-structure

Link: 
Journal: 
  Boll. Unione Mat. It.  
Volume: 
(7)9-A
Initial page: 
99
End page: 
112
Member: 
13
Authors: 
F. Martín Cabrera
Year: 
1 996