@article{gurevich1963universal,
author = {Gurevich, Yuri},
title = {Universal Equivalence of Ordered Abelian Groups},
year = {1963},
month = {April},
abstract = {We prove that no universal first-order property distinguishes between any two ordered abelian groups.},
url = {http://approjects.co.za/?big=en-us/research/publication/universal-equivalence-ordered-abelian-groups/},
pages = {37-39},
journal = {Algebra and Logic},
}