@misc{Kowalczyk_Agnieszka_Permanent_2011,
 author={Kowalczyk, Agnieszka and Twardy, Stanisław and Kuźniar, Antoni},
 number={No 15},
 howpublished={online},
 year={2011},
 publisher={Polish Academy of Sciences Committee on Agronomic Sciences Section of Land Reclamation and Environmental Engineering in Agriculture; Institute of Technology and Life Sciences},
 title={Permanent turf grass as the factor alleviating water erosion in the Carpathian Mountains<br />Trwałe zadarnienie gleb jako czynnik łagodzący procesy erozji wodnej w obszarach karpackich},
}