@article{10_1007_s10492_009_0032_6,
     author = {Liu, Yuji},
     title = {A survey and some new results on the existence of solutions of {IPBVPs} for first order functional differential equations},
     journal = {Applications of Mathematics},
     pages = {527--549},
     publisher = {mathdoc},
     volume = {54},
     number = {6},
     year = {2009},
     doi = {10.1007/s10492-009-0032-6},
     mrnumber = {2563123},
     zbl = {1212.34184},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-009-0032-6/}
}