@article{FPM_2013_18_4_a11, author = {O. I. Tsarkov}, title = {Extension of endomorphisms of the subsemigroup $\mathrm{GE}^+_2(R)$ to endomorphisms of $\mathrm{GE}^+_2(R[x])$, where~$R$ is a~partially-ordered commutative ring without zero divisors}, journal = {Fundamentalʹna\^a i prikladna\^a matematika}, pages = {155--184}, publisher = {mathdoc}, volume = {18}, number = {4}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FPM_2013_18_4_a11/} }