@article{NAM_1861_1_20__438_1,
     author = {Lehmann},
     title = {S\'erie logarithmique tr\`es-convergente},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {438--439},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {1e s{\'e}rie, 20},
     year = {1861},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1861_1_20__438_1/}
}