TY - JOUR TI - Reduction of Euler-Lagrange equations in Gauge theories PY - 2003 AU - Geyer, B AU - Gitman, Dmitri Maximovitch AU - Tyutin, I T2 - International Journal of Modern Physics A DO - 10.1142/s0217751x03015519 UR - https://doi.org/10.1142/s0217751x03015519 PP - Singapore ER -