Abstract
Photoelectric photometry of asteroids 58, 122, 326 and 441 are herein presented. The observations were made during 1991 at Estacion Astronomica "Dr.Carlos Ulrrico Cesco" of Felix Aguilar Observatory, San Juan, Argentina. For minor planets 122 and 326 a reliable rotation period has been obtained, while for 58 Concordia an approximate estimate is given. K words: MINOR
