A monolayer of three-level quantum Λ-emitters: A perspective system from the viewpoint of nonlinear optical dynamics and nanophotonicsIgor Ryzhov, Ramil Malikov, Andrei Malyshev and Victor MalyshevEPJ Web Conf., 220 (2019) 02012DOI: https://doi.org/10.1051/epjconf/201922002012