@ARTICLE{Strzałkowski_Piotr_A_2001,
 author={Strzałkowski, Piotr},
 volume={vol. 50},
 number={No 2},
 journal={Geodesy and Cartography},
 pages={75-89},
 howpublished={online},
 year={2001},
 publisher={Polska Akademia Nauk/ Komitet Geodezji Polskiej Akademii Nauk; Polish Academy of Sciences / Commitee on Geodesy Polish Academy of Sciences},
 abstract={According to analyses of results of surveying measurements, description of undefined subsidence, performed with the use of S. Knothe's model is characterised by the sufficient coherence with results of measurements since the moment when the full subsiding trough becomes visible on the terrain surface. Lower coherence with results of measurements appears in the initial period after commencement of exploitation. In order to improve the quality of description within the initial phase of subsidence, a mathematical model has been developed, which is based on relations between the coefficient of the velocity of subsidence and the time co-ordinate, and from geometric co-ordinates. Obtained solutions have been verified basing on results of surveying measurements, with the use of a special computer software.},
 type={Article},
 title={A model of deformation of a rock mass with respect to relations of a subsidence coefficient and a time co-ordinate and spatial co-ordinates},
 URL={http://ochroma.man.poznan.pl/Content/121607/PDF-MASTER/4_GK_TOM_L_ZESZYT_2_2001Strzalkowski_Model.pdf},
}