Approximation Methods for Bound States
1988 ◽
Vol 102
◽
pp. 129-132
2003 ◽
Vol 173
(9)
◽
pp. 999
◽
Keyword(s):
2014 ◽
Vol 59
(11)
◽
pp. 1065-1077
◽
1999 ◽
Vol 31
(10)
◽
pp. 70-83
Keyword(s):
2002 ◽
Vol 58
(9-10)
◽
pp. 9