Hooijschuur , J., Verkaaik , M., Davies , G. and Ariese , F. (2015) “Will Raman meet bacteria on Mars? An overview of the optimal Raman spectroscopic techniques for carotenoid biomarkers detection on mineral backgrounds”, Netherlands Journal of Geosciences, 95(2), pp. 141-151. doi: 10.1017/njg.2015.3.