@misc{Demina_Irina_M._On_1998,
 author={Demina, Irina M. and Kasyanenko, Leonid G. and Uhrynowski, Andrzej},
 copyright={Instytut Geodezji i Kartografii},
 address={Warszawa},
 howpublished={online},
 year={1998},
 publisher={Instytut Geodezji i Kartografii},
 language={eng},
 language={pol},
 language={ros},
 title={On vector representation of secular variation of the geomagnetic field},
 type={czasopismo},
 keywords={magnetyzm ziemski, pole geomagnetyczne},
}