@misc{Pleijel_H._Om_1912,
 author={Pleijel, H.},
 editor={Nielsen, Niels. Ed.},
 copyright={Rights Reserved - Restricted Access},
 address={Kjøobenhavn},
 address={Kristiania},
 howpublished={online},
 year={1912},
 publisher={Gyldendalske Boghandel Nordisk Forlag},
 language={dan},
 title={Om telegrafistekvationen},
 type={Text},
}