@article{multidirectionalconjugategradientsfor,
  title = {Multidirectional Conjugate Gradients for Scalable Bundle Adjustment},
  author = {Simon Weber and Nikolaus Demmel and Daniel Cremers},
  year = {2021},
  eprint = {2110.04015},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2110.04015v1},
}