TY - JOUR AU - J. Gibbon TI - Orthonormal quaternion frames, Lagrangian evolution equations, and the three-dimensional Euler equations JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2007 SP - 535 EP - 560 VL - 62 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_2007_62_3_a6/ LA - en ID - RM_2007_62_3_a6 ER -