@misc{W2137983211,
  author = {Kurt Hornik and Maxwell B. Stinchcombe and Halbert White},
  title = {Multilayer feedforward networks are universal approximators},
  year = {1989},
  howpublished = {Neural Networks},
  doi = {https://doi.org/10.1016/0893-6080(89)90020-8}
}