@article{COCV_2021__27_1_A8_0,
     author = {\'Swi\k{e}ch, Andrzej},
     title = {Singular perturbations and optimal control of stochastic systems in infinite dimension: {HJB} equations and viscosity solutions},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     year = {2021},
     publisher = {EDP-Sciences},
     volume = {27},
     doi = {10.1051/cocv/2021001},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv/2021001/}
}