J. Stoer,International Federation for Information Processing,IFIP Conference on Optimization Techniques.IFIP Conference on Optimization Techniques (8th : 1977 : Wurzburg)：Optimization techniques．pt. 2.Springer,1978.
J. Stoer,International Federation for Information Processing,IFIP Conference on Optimization Techniques.IFIP Conference on Optimization Techniques (8th : 1977 : Wurzburg)：Optimization techniques．pt. 1.Springer,1978.
A. Ruberti,International Federation for Information Processing,IFIP working conference.IFIP working conference (1976 : Rome,Italy)：Distributed parameter systems : modelling and identification.Springer,1978.
