@article{VUU_2008_2_a25,
     author = {A. S. Larionov},
     title = {Positive solutions of functional differential equations},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {73--74},
     publisher = {mathdoc},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2008_2_a25/}
}