- A Visualization of Null Geodesics for the Bonnor Massive Dipole. (Oliva, Cordero, Bonatti; 2014). Presented in Simmac 2014, University of Costa Rica.
- A Numerical study of a Kerr-like metric. (Oliva, Frutos, Bonatti, Gonzalez; 2016). Presented in Simmac 2016, University of Costa Rica.
- Ujti. Software for gravitational lensing and redshift for an arbitrary metric.
- Ujti manual. Manual and documentation for Ujti.
- Ujti results. Partial results obtained with the software.
- Introductory Physics textbook (Spanish)
- Logarithms and slide rules. How to build and use a two-significant-figure slide rule from scratch, by hand.
Graduate school papers
- Dirac equation in a constant magnetic field, in Mathematica. Mathematical Methods for Physicists, II-2013.