@misc{Siwecki_Ryszard_Observations_1974,
 author={Siwecki, Ryszard},
 volume={13},
 editor={Polska Akademia Nauk. Zakład Dendrologii i Pomologii w Kórniku},
 copyright={Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0},
 journal={Arboretum Kórnickie},
 address={Warszawa},
 howpublished={online},
 year={1974},
 publisher={The Foreign Scientific Publications Department of the National Center for Scientific, Technical and Economic Information},
 language={mul},
 title={Observations on the Resistance of Poplar Hybrids from Section Leuce Duby, to Infection by Venturia tremulae Aderh.},
 type={Tekst},
 keywords={odporność moieszańców topoli, choroby grzybowe, Venturia tremulae},
}