On a certain analytic method in the theory of linear differential equations having periodic coefficients and stationary delays of the argument. I
1965 ◽
Vol 1
(2)
◽
pp. 206-221
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1977 ◽
Vol 9
(2)
◽
pp. 233-234
1968 ◽
Vol 19
(2)
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pp. 159-168
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2003 ◽
pp. 838-847
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1932 ◽
Vol s1-7
(4)
◽
pp. 263-265
1960 ◽
Vol 24
(4)
◽
pp. 877-902
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