@base . a ; . a ; "0926-2245" ; . a . a ; "0926-2245" ; . a ; ; "20081209132600.0"^^ ; ; . "Netherlands" . a , ; "Differential geometry and its applications" . a , , ; , , ; "Differential geometry and its applications." ; ; ; ; "0926-2245" ; ; ; "0926-2245" ; ; "0926-2245" ; "Differential geometry and its applications." , "Differential geometry and its applications" ; . .