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A. Weinmann:
"Admissible short-time uncertainty in network control systems";
E&I Elektrotechnik und Informationstechnik, 119 (2002), 9; 301 - 303.

Increasing in number, busses and wireless networks are used as signal
transmission in control systems.
Networked control systems of this kind are characterized by
occasional or arbitrary time delay or interruptions of minor loops.
These influences are modelled as short-time uncertainties,
in contrast to robust control systems in the literature, which are
mainly studied as families with time-invariant uncertainties.

Severe uncertainties are taken into consideration
even if they cause short-time instability, only.
An uncertainty can be valuated admissible
if the accompanying signal amplitude or energy increase remains bounded.