Generalized solutions
Keyword(s):
Keyword(s):
1966 ◽
Vol 20
(1)
◽
pp. 56-60
1987 ◽
Vol 109
(4)
◽
pp. 591-611
◽
2013 ◽
Vol 11
(02)
◽
pp. 1350017
◽
2011 ◽
Vol 22
(4-5)
◽
pp. 247-254
Keyword(s):