no. 1
The Intermittent Server
Publications du Département de mathématiques (Lyon), Tome 15 (1978) no. 1, pp. 83-95. 
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     author = {Keller, J. P.},
     title = {The {Intermittent} {Server}},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {83--95},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {15},
     number = {1},
     year = {1978},
     zbl = {0418.60091},
     mrnumber = {545756},
     language = {en},
     url = {http://archive.numdam.org/item/PDML_1978__15_1_83_0/}
}
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IS  - 1
PB  - Université Claude Bernard - Lyon 1
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UR  - https://zbmath.org/?q=an%3A0418.60091
UR  - https://www.ams.org/mathscinet-getitem?mr=545756
LA  - en
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ER  - 
Keller, J. P. The Intermittent Server. Publications du Département de mathématiques (Lyon), Tome 15 (1978) no. 1, pp. 83-95. http://archive.numdam.org/item/PDML_1978__15_1_83_0/

(1) J.R. Jackson, Jobshop-like Queuing systems,Management Sciences, 10 (1963).

(2) Currently associated with Citibank, N.Y.

(3) Currently at N.Y.U.

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(5) J. Keisler, Elementary Calculus, Prindle and Co (1976). | Zbl 0655.26002

(6) M. Davis, Applied Non-standard Analysis, J. Wiley and sons (1977). | MR 505473 | Zbl 0359.02060

(7) K.D. Stroyan, WAJ Luxemburg, Introduction to the theory or Infinitesimals Academic Press (1976). | MR 491163 | Zbl 0336.26002