@article{AFM_2019_44_2_a12,
     author = {Amedeo Altavilla and Cinzia Bisi},
     title = {Log-biharmonicity and a {Jensen} formula in the space of quaternions},
     journal = {Annales Fennici Mathematici},
     pages = {805{\textendash}839--805{\textendash}839},
     year = {2019},
     volume = {44},
     number = {2},
     doi = {10.5186/aasfm.2019.4447},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2019.4447/}
}