@book{UBHD-67398715, author={Stebbins, Joel}, title={Photometric observations of double stars}, publisher={University}, address={Urbana}, year={1907}, pages={58 S.}, language={eng}, number={ARRAY(0x560b911ff8a0)}, series={The university studies / University of Illinois}, library={LS [Signatur: LS/US 5000 S811]}, }