@article{whatismathml,
    type = "article",
    author = "Peter James Rowlett",
    year = "2006",
    title = {What is MathML?},
    journal = "MSOR Connections",
    volume = "6",
    number = "1",
    pages = "18-19",
    url = "https://www.heacademy.ac.uk/sites/default/files/msor.6.1h.pdf"
}