@article{IM2_2018_82_6_a7,
     author = {Z. Siar},
     title = {Trigonometric factorizations of the {Horadam} sequence and its companion sequence},
     journal = {Izvestiya. Mathematics},
     pages = {1265--1277},
     year = {2018},
     volume = {82},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2018_82_6_a7/}
}