On one class of systems of differential equations with periodic coefficients in linear terms
2004 ◽
Vol 68
(2)
◽
pp. 183-198
◽
1933 ◽
Vol s1-8
(4)
◽
pp. 283-288
◽
1969 ◽
Vol 7
(2)
◽
pp. 171-193
◽
2014 ◽
Vol 55
(5)
◽
pp. 866-881
◽
2014 ◽
Vol 8
(1)
◽
pp. 20-27