TY  - JOUR
AU  - P. G. L. Leach
AU  - A. Karasu (Kalkanli)
AU  - M. C. Nucci
AU  - K. Andriopoulos
TI  - Ermakov's Superintegrable Toy and Nonlocal Symmetries
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2005
VL  - 1
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a17/
LA  - en
ID  - SIGMA_2005_1_a17
ER  -