V.G. Prokhorov, G.G. Kaminsky, V.A. Komashko, Y.P. Lee, and J.S. Park, Magnetic and transport properties of La_0.8Sr_0.2MnO₃/La_0.8Ca_0.2MnO₃ bilayer, Low Temp. Phys. 29, (2003) [Fiz. Nizk. Temp. 29, 885-888, (2003)] DOI: https://doi.org/10.1063/1.1596796.