High Order Accuracy Optimized Methods for Constrained Numerical
Solutions of Hyperbolic Conservation Laws, w J. Koebbe (1994)
SIAM J. Sci. Comput. , Vol 15, pp 846-865.
Accuracy Optimized Methods for Constrained Numerical Solutions
of Hyperbolic Conservation Laws, w J. Koebbe (1993)
Journal of Computational Physics , Vol 109, No 1, pp 115-132.