@online{piequalse,
    author={The Engineering ToolBox},
    title={Latent Heat of Melting for some common Materials},
    url={https://www.engineeringtoolbox.com/latent-heat-melting-solids-d_96.html}
}

@online{wikipedia,
    author={},
    title={Supercooling},
    year=2021,
    month=1,
    url={https://en.wikipedia.org/w/index.php?title=Supercooling&oldid=1000476631}
}