TY - SER AU - Sando,Ivar AU - Munkvold,Ola-Petter Normann AU - Elde,Rigmor Mette TI - Two decades of 4D geophysical developments-experiences, value creation and future trends PY - 2009/// CY - PB - N2 - Transcripción del resumen del autor. Seismic data continues to be the hig-value leader in time-lapse monitoring, but gravity, EM and other methods will come into use in the near future ER -