Model Theory, 1973. ,
The elementary theory of abelian groups, Annals of Mathematical Logic, vol.4, issue.2, pp.115-171, 1972. ,
DOI : 10.1016/0003-4843(72)90013-7
The first order properties of algebraic systems, Fund. Math, vol.47, pp.57-103, 1959. ,
Partially ordered algebraic systems, 1963. ,
The universal theory of lattice ordered abelian groups, 1987. ,
Cyclic order groups and MV-algebras, Czechoslovak Math, J, vol.43, issue.2, pp.249-263, 1983. ,
Universal equivalence of ordered abelian groups, Algebra Logica, pp.37-39, 1963. ,
Representation of cyclically ordered groups, ? Casop, P?stov. Matem, vol.113, pp.184-196, 1988. ,
Fully ordered groups, transl.) J. Wiley and sons, 1974. ,
21-23. [12] M. Onishi, On linearization of ordered groups [13] L. Rieger, On ordered and cyclically ordered groups, V?stník král. ? cesk spol. nauk, pp.161-164, 1946. ,
Un théorème de plongement en algèbre, Bull. Sci. Math, vol.2, pp.49-52, 1968. ,
Group theory, p.43, 1965. ,
Model theory of abelian groups, Habilitationsschrift On cyclically ordered groups, Fund, Math, pp.47-161, 1959. ,
Cyclically ordered groups, translation from Sibirsk, Math. Zh, vol.17, issue.5, pp.1046-1051, 1976. ,