@article{PismaZhETF.54.542,
    title = {Fibonacci numbers in botany and physics: Phyllotaxis},
    author = {Levitov, L. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {54},
    issue = {9},
    pages = {542},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19148.shtml},
}