@misc{Lackner_Guilelmus_(1854-)_De,
 author={Lackner, Guilelmus (1854-)},
 address={Gumbinnen (Gąbin)},
 howpublished={online},
 language={ger},
 language={gre},
 language={ita},
 type={sprawozdanie szkolne XIX-XX w.},
 title={De incursionibus a Gallis in Italiam factis quaestio historica. Pars I},
 keywords={Königliches Friedrichs-Gymnasium (Gumbinnen), Gąbin, szkolnictwo, rozprawka naukowa},
}