The disaster of the Nazi-power in science as reflected by some leading journals and scientists in physics. - Manuel Cardona 001; Werner Marx (Scientometrics, 2005)

The citation impact outside references - formal versus informal citations. - Werner Marx; Manuel Cardona 001 (Scientometrics, 2009)

Reference standards and reference multipliers for the comparison of the citation impact of papers published in different time periods. - Werner Marx; Lutz Bornmann; Manuel Cardona 001 (J. Assoc. Inf. Sci. Technol., 2010)