@article{JRAM_1996__477_153841,
     author = {Roger D. Nussbaum and John Mallet-Paret},
     title = {Boundary layer phenomena for differential-delay equations with state dependent time lags: {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {129--198},
     publisher = {mathdoc},
     volume = {477},
     year = {1996},
     zbl = {0854.34072},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1996__477_153841/}
}