@misc{badania+nad+ukladem+caco3+mgco3+nh4no3+h2o+w+temperaturach+25oc+i+160oc,
    author = {Kempa, Maria},
    title = {Badania nad układem CaCO3, MgCO3 - NH4NO3 - H2O w temperaturach 25ºC i 160ºC},
    publisher = {[s.n.]},
    date = {1976}
}