TY - DATA AU - H.D. Doebner AU - T.D. Palev TI - Twistor Geometry and Non-Linear Systems T2 - Lecture Notes in Mathematics SN - 9783540394181 PY - 1982/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0066021 ER -