Trace formulae and completely integrable
Hamiltonians
1993 ◽
Vol 174
(5-6)
◽
pp. 407-410
◽
1994 ◽
Vol 79
(2-4)
◽
pp. 361-386
◽
2021 ◽
Vol 10
(4)
◽
pp. 2141-2147