Petridou, Eleni; Psillos, Dimitris; Lefkos, Ioannis; Fourlari, Sophia; Hatzikraniotis, Euripides (University of Zilina, 2005)
Content analysis of textbooks and of research - based innovative approaches suggests that there is not a widely accepted negotiation of the order in which factors that are expressed in relation Q = m c should be ...