@article{10_21136_CMJ_2021_0548_20,
     author = {Chernyavskaya, Nina A. and Shuster, Leonid A.},
     title = {The {Massera-Sch\"affer} problem for a first order linear differential equation},
     journal = {Czechoslovak Mathematical Journal},
     pages = {477--511},
     publisher = {mathdoc},
     volume = {72},
     number = {2},
     year = {2022},
     doi = {10.21136/CMJ.2021.0548-20},
     mrnumber = {4412771},
     zbl = {07547216},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2021.0548-20/}
}