1. Rings of Differential Operators;Björk,1979
2. Fast algorithms for manipulating formal power series;Brent;J. Assoc. Comput. Mach.,1978
3. On the complexity of composition and generalized composition of power series;Brent;SIAM J. Comput.,1980
4. Riemann monodromy problem, isomonodromy deformation equations and completely integrable systems (Cargese Lectures, July 1979);Chudnovsky,1980
5. Rational and Pad6 approximations to solutions of linear differential equations and the monodromy theory (Les Houches Lectures, September 1979),;Chudnovsky,1980