An adaptation of a commercially available photochemical lamp, composed of four circular UV lamps, permits efficient sterilization of uneven, strongly pitted surfaces of geological material without killing the bacteria possibly existing in the core of the sample. © 1990.
Volpon, A. G. T., Elias, C. A., & Drozdowicz, A. (1990). An efficient device for sterilizing irregular surfaces. Journal of Microbiological Methods, 11(1), 51–58. https://doi.org/10.1016/0167-7012(90)90047-A