TY - RPRT TI - Kirchhoff approximation for diffusive waves. AU - J Ripoll AU - V Ntziachristos AU - R Carminati AU - M Nieto-Vesperinas PY - 2001 DO - 10.1103/physreve.64.051917 UR - https://pubmed.ncbi.nlm.nih.gov/11735978/ ID - 11735978 ER -