@article{NAM_1885_3_4__171_0,
     author = {Goffart, N.},
     title = {\'Evaluation g\'eom\'etrique de l{\textquoteright}int\'egrale $\int _{-1}^1\frac{\sin \alpha dx}{1-2x\cos \alpha +x^2}=f(\alpha )$},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {171--172},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {3e s{\'e}rie, 4},
     year = {1885},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1885_3_4__171_0/}
}