PROB SOL IN DIFF GEOM LIE SERIES DIFFER FORMS RELATIV LIE SERIES

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Plane Euclidean Geometry: Theory and Problems

Willi-Hans Steeb - Problems And Solutions In Differential Geometry Li - X555z

Bielawski - Variational Problems in Differential Geometry - New paperb - X555z

Euler, N.; Steeb, Willi-Hans: Nonlinear Evolution Equations Painleve Test 1988

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Problems in Analytic Geometry by D. Kletenik, Peace Publishers Moscow, Hardcover