Evaluation of organic sub-monolayers by X-ray based measurements under gracing incident conditionsO. Werzer, B. Stadlober, A. Haase, H.-G. Flesch and R. ReselEur. Phys. J. Appl. Phys., 46 2 (2009) 20403DOI: https://doi.org/10.1051/epjap/2009038