Erratum

My technical note “The Optimal Estimation of the Expected Number in a M/D/∞ Queueing System” (Grassmann, W. K. 1981. The optimal estimation of the expected number in a M/D/∞ queueing system. Opns. Res.29 1208–1211) starts with the words “In stimulation.” Even though I hope that the note is stimulating, I actually meant “In simulation” because that is where the results of the paper was really be applied.