TY - CPAPER AU - Sergey Kharchenko TI - COMPARISON OF APPROXIMATION QUALITY OF EARTHS SURFACE FOR DIFFERENT LANDFORM TYPES (ON EXAMPLES OF ALGEBRAIC AND TRIGONOMETRIC TRENDS) T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing PY - 2017 SP - 431 EP - 438 DO - 10.5593/sgem2017/23/s11.053 PB - STEF92 Technology ER -