Regular Differential Systems of the First Order
1933 ◽
Vol 19
(4)
◽
pp. 451-453
◽
1991 ◽
Vol 162
(2)
◽
pp. 482-493
2018 ◽
Vol 41
(15)
◽
pp. 5985-5988
2018 ◽
Vol 28
(14)
◽
pp. 1850175
2015 ◽
Vol 12
(6)
◽
pp. 2197-2204
2013 ◽
Vol 23
(02)
◽
pp. 1350024
◽
2011 ◽
Vol 21
(11)
◽
pp. 3181-3194
◽