@article{AMI_2020_52_a3,
     author = {Andrew Bremner},
     title = {On two four term arithmetic progressions with equal product},
     journal = {Annales mathematicae et informaticae},
     pages = {39--55},
     year = {2020},
     volume = {52},
     doi = {10.33039/ami.2020.02.001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.33039/ami.2020.02.001/}
}