TY - BOOK AU - Burstall, Francis E. and Rawnsley, John Y. AU - Rawnsley, John Y. ; jt. auth. TI - Twistor theory for Riemannian symmetric spaces with applications to harmonic maps of Riemann surface T2 - Lecture notes in Mathematics U1 - 530.1 PY - 1990/// CY - Berlin PB - Springer-Verlag ER -