Guo, Shou-Zhu Nanofluids Containing γ-Fe2O3 Nanoparticles and Their Heat Transfer Enhancements. [electronic resource] - Nanoscale research letters May 2010 - 1222-7 p. digital Publication Type: Journal Article ISSN: 1556-276X Standard No.: 10.1007/s11671-010-9630-1 doi