@inproceedings{inproceedingsd6cf40f5,
title   = {Difficulties for comprehension of the law of inertia},
author = {Villani, Alberto and Pacca, Jesuína Lopes de Almeida},
year = {1992},
publisher = {Nicholas Copernicus University Press},
booktitle   = {Teaching About Reference Frames: Internacional Conference Girep/Icpe}
}