By Lehtinen A   Viiri J   in Physics Education

ISSN:0031-9120|49|3|344-348

IOP Publishing‎(2014)‎

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By Savinainen A.   Nieminen P.   Mäkynen A.   Viiri J.   in Physics Education

ISSN:0031-9120|48|3|372-377

IOP Publishing‎(2013)‎

Access to resources Favorite 2.0359883