Upper and lower bound eigenvalues of a conservative discrete system
1977 ◽
Vol 53
(2)
◽
pp. 183-187
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Keyword(s):
2009 ◽
Vol 34
(3)
◽
pp. 331-336
◽
Keyword(s):
2011 ◽
Vol 33
(3)
◽
pp. 701-705
◽
Keyword(s):
1989 ◽