[GRAHAM'S Planet beobachtet]
Astronomische Abhandlungen Bd. 6, GDML_Books, (1874), p. 477 / Harvested from
Access to full text 
@article{PPN236007467+dmdlog221,
     title = {[GRAHAM'S Planet beobachtet]},
     booktitle = {Astronomische Abhandlungen Bd. 6},
     series = {GDML\_Books},
     year = {1874},
     pages = {477},
     url = {http://dml.mathdoc.fr/item/PPN236007467+dmdlog221}
}

 (éd.). [GRAHAM'S Planet beobachtet], dans Astronomische Abhandlungen Bd. 6, GDML_Books,  (1874), p. 477. http://gdmltest.u-ga.fr/item/PPN236007467+dmdlog221/