The European Physical Journal B
The European Physical Journal B > 1999 > 11 > 4 > 687-690
The European Physical Journal B > 1999 > 12 > 1 > 91-97
The European Physical Journal B > 1999 > 11 > 4 > 687-690
The European Physical Journal B > 1999 > 12 > 1 > 91-97