Econophysics has nothing to do with the "physical quantities approach" to economics, advocated by Ian Steedman and others associated with neo-Ricardianism. Notable econophysicists are Emmanuel Bacry, Giulio Bottazzi, Jean-Philippe Bouchaud, Bikas K Chakrabarti, J. Doyne Farmer, Diego Garlaschelli, Dirk Helbing, János Kertész, Fabrizio Lillo, Rosario N. Mantegna, Matteo Marsili, Joseph L. McCauley, Jean-Francois Muzy, Enrico Scalas, Angelo Secchi, Didier Sornette, H. Eugene Stanley, Victor Yakovenko and Yi-Cheng Zhang. Particularly noteworthy among the formal courses on econophysics is the one offered continuously for more than a decade by Diego Garlaschelli at the Physics Department of the Leiden University.