[1] C. G. Chehata R. Wiegandt:
Radical theory for fully ordered groups. Rév. Аnal. Numér. Théor. Аpprox. 20 (43), 1979, 143-157.
MR 0530451
[2] J. Jakubík:
Radical mappings and radical classes of lattice ordered groups. Symposia Mathematica, Vol. 21, Аcademic Press, London-New York, 1977, 451-477.
MR 0491397
[3] J. Jakubík:
On the lattice of radical classes of linearly ordered groups. Studia Sci. Math. Hungar. (to appear).
MR 0703644
[4] J. Jakubík: On the lattice of semisimple classes of linearly ordered groups. Čas. Pěst. Mat. (submitted).
[5] J. Jakubík: On radical classes of abelian linearly ordered groups. (submitted).
[6] G. Pringerová:
Covering condition in the lattice of radical classes of linearly ordered groups. Math. Slovaca (submitted).
MR 0720506
[7] G. Pringerová:
On semisimple classes of abelian linearly ordered groups. Časopis Pěst. Mat. (submitted).
MR 0694139
[8] J. Martinez:
Torsion theory for lattice ordered groups, I. Czech. Math. Ј. 25, 1975, 284-299.
MR 0389705