Open source 3D printing as a means of learning : an educational experiment in two high schools in GreeceKostakis, Vasileios; Niaros, Vasileios; Giotitsas, ChristosTelematics and informatics2015 / p. 118-128 : ill https://doi.org/10.1016/j.tele.2014.05.001 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS