@article{RSMUP_1981__65__19_0,
     author = {Ahmad, Shair and Vatsala, A. S.},
     title = {Comparison results of reaction-diffusion equations with delay in abstract cones},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {19--34},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {65},
     year = {1981},
     mrnumber = {653279},
     zbl = {0499.35010},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1981__65__19_0/}
}