@misc{indiciae2d225ce0b0aa,
  title = {Numerical integration and Riemann-Stieltjes sums.},
  author = {Decell, H. P., Jr. and Lea, R. N.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660056540},
  note = {Source identifier: 19660056540}
}