Boi͡arint͡sev, I͡U. E.

• Methods of solving singular systems of ordinary differential equations
• Algebro-different͡sialʹnye sistemy
• Metody reshenii͡a vyrozhennykh sistem obyknovennykh different͡sialʹnykh uravneniĭ
• Reguli͡arnye i singuli͡arnye sistemy lineĭnykh obyknovennykh different͡sialʹnykh uravneniĭ