11. Series solutions for linear differential equations
1994 ◽
Vol 1
(1)
◽
pp. 1-13
◽
2020 ◽
pp. 377-417
1986 ◽
Vol 17
(5)
◽
pp. 1037-1052
◽
2019 ◽
Vol 74
(3)
◽
pp. 121-126