Order Separability of Free Products with Amalgamated Subgroup / Edynak V.V. // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2011. ? 5. P. 6-14 [Moscow Univ. Math. Bulletin. Vol. 66, N 5, 2011.].

The order separability is proved for the free product of two free groups with the amalgamated maximal cyclic subgroups.

Key words: free products, residual properties.