BESSEL an GAUSS, Winter 1822/23
Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1, GDML_Books, (1927), p. 427 / Harvested from
Access to full text 
@article{PPN236020595+dmdlog311,
     title = {BESSEL  an GAUSS, Winter 1822/23},
     booktitle = {Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1},
     series = {GDML\_Books},
     year = {1927},
     pages = {427},
     url = {http://dml.mathdoc.fr/item/PPN236020595+dmdlog311}
}

 (éd.). BESSEL  an GAUSS, Winter 1822/23, dans Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1, GDML_Books,  (1927), p. 427. http://gdmltest.u-ga.fr/item/PPN236020595+dmdlog311/