@Article{600994,
     author = "Paweł Pęczkowski, Władysław Błasiak",
     title = "Students’ Views on Usefulness of Chosen Physics Formulas",
     year =  2017,
     volume =  ,
     number =  4(22),
     journal =  Edukacja - Technika - Informatyka,
     pages =  s. 201-213,
    }