TY  - JOUR
AU  - Concepción Muriel
AU  - Juan Luis Romero
TI  - Nonlocal Symmetries, Telescopic Vector Fields and $\lambda$-Symmetries of Ordinary Differential Equations
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2012
VL  - 8
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a105/
LA  - en
ID  - SIGMA_2012_8_a105
ER  -