No XXI - XXX.
Jacobi Bernoulli Opera Tomus Primus, GDML_Books, (1744), p. 248 / Harvested from
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@article{PPN585139601+DMDLOG_0008,
     title = {No XXI - XXX.},
     booktitle = {Jacobi Bernoulli Opera Tomus Primus},
     series = {GDML\_Books},
     publisher = {Cramer \& Philibert},
     address = {Genevae},
     year = {1744},
     pages = {248},
     url = {http://dml.mathdoc.fr/item/PPN585139601+DMDLOG_0008}
}

 (éd.). No XXI - XXX., dans Jacobi Bernoulli Opera Tomus Primus, GDML_Books,  (1744), p. 248. http://gdmltest.u-ga.fr/item/PPN585139601+DMDLOG_0008/