On the spectrum of almost periodic solution of second-order differential equations with piecewise constant argument
2009 ◽
Vol 349
(1)
◽
pp. 299
◽
2005 ◽
Vol 303
(1)
◽
pp. 103-118
◽
2011 ◽
Vol 27
(11)
◽
pp. 2275-2284
◽
2006 ◽
Vol 141
(01)
◽
pp. 161
◽
2000 ◽
Vol 43
(4)
◽
pp. 371-383
◽
2013 ◽
Vol 2
(4)
◽
pp. 369-388
◽
2001 ◽
Vol 45
(6)
◽
pp. 661-688
◽
2003 ◽
Vol 52
(5)
◽
pp. 1411-1440
◽