%0 Journal Article %A A. M. Galstian %A V. M. Smbatian %T Fiber optic interferometric sensors of stress and acoustic pressure on twin-core waveguides %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 1990 %P 67-70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_1990_1_a10/ %G ru %F UZERU_1990_1_a10