@incollection{MEM_2011_40_1_a15,
     author = {Georgieva, Atanaska and Gluhcheva, Stela and Hristova, Snezhana},
     title = {Stability in {Terms} of {Two} {Measures} for {Differential} {Equations} with {{\textquotedblleft}Maxima{\textquotedblright}}},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {182--186},
     year = {2011},
     volume = {40},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MEM_2011_40_1_a15/}
}