@article{10_1017_S0017089521000458,
     author = {Vergara, Ignacio},
     title = {Weak amenability of free products of hyperbolic and amenable groups},
     journal = {Glasgow mathematical journal},
     pages = {698--701},
     year = {2022},
     volume = {64},
     number = {3},
     doi = {10.1017/S0017089521000458},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089521000458/}
}