Friedlander, J. GeneraL investigations of the convergence of trigonometric series into which arbitrary functions are expanded and some new applications of the same / by Julius Friedlander; J. Friedlander .— : 1853, 1853 .— 31 с. — Lang: eng .— URL: https://rucont.ru/efd/124207 (дата обращения: 01.07.2024)