1. Classical electrodynamics in terms of direct interparticle actions;Wheeler;Review of Modern Physics,1949
2. Variational and boundary value problems with deviating argument;Kamenskiĭ;Differential Equations,1970
3. On extrema of functionals with deviating argument;Kamenskiĭ;Soviet. Math. Dokl.,1975
4. On conditional extremum of a functional with deviating argument;Kamenskiĭ;Soviet. Math. Dokl.,1977
5. On variational method of solution of some linear differential equations with deviating argument;Kamenskiĭ;Differential Equations,1977