TY - BOOK AU - Burstall, Francis E TI - Conformal geometry of surfaces in S⁴ and quaternions SN - 9783540430087 SN - 200353783 U1 - 516.35 FER PY - 2002/// CY - Berlin ; New York PB - Springer KW - Conformal mapping KW - Quaternions N1 - Includes bibliographical references (p. [87]) and index ER -