How powerful is continuous nonlinear information for linear problems?

Boleslaw Z. Kacewicz, Grzegorz W. Wasilkowski. How powerful is continuous nonlinear information for linear problems?. J. Complexity, 2(4):306-316, 1986. [doi]

@article{KacewiczW86,
  title = {How powerful is continuous nonlinear information for linear problems?},
  author = {Boleslaw Z. Kacewicz and Grzegorz W. Wasilkowski},
  year = {1986},
  doi = {10.1016/0885-064X(86)90008-7},
  url = {http://dx.doi.org/10.1016/0885-064X(86)90008-7},
  researchr = {https://researchr.org/publication/KacewiczW86},
  cites = {0},
  citedby = {0},
  journal = {J. Complexity},
  volume = {2},
  number = {4},
  pages = {306-316},
}