Conceptualizing Variation and Control Chart TheoryBrian D. Neureuther · 2006

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[Lecture Notes in Control and Information Sciences] Control Theory of Distributed Parameter Systems and Applications Volume 159 || Domain variation for drag in stokes flowLi, Xunjing; Yong, Jiongmin · 1991

[Mathematics in Science and Engineering] The Computation and Theory of Optimal Control Volume 65 || 5 The Gradient Method and the First Variation, · 1970

[Mathematics in Science and Engineering] The Computation and Theory of Optimal Control Volume 65 || 6 The Successive Sweep Method and the Second Variation, · 1970

IFCC recommendation — theory of reference values. Part 4. Control of analytical variation in the production, transfer and application of reference valuesH.E. Solberg; D. Stamm · 1991

[Lecture Notes in Control and Information Sciences] Boundary Control and Boundary Variation Volume 178 || Stability of the travelling waves in a class of free boundary problems arising in combustion theoryZoléesio, Jean Paul · 1992