# Glossary and references The glossary defines the terms and symbols used throughout the manual, from the trace error and the interactions to the dispersive slab, `R_omega` and the B-spline phase basis. The references list the two papers describing croak's models and validation and the published work its algorithms and uncertainty estimators build on. ```{toctree} :maxdepth: 1 ../reference/glossary ../reference/bibliography ``` For units and sign conventions, see [conventions](../reference/conventions.md) and [the FFT convention](../reference/fft_convention.md). For Python names and call signatures, use the [API](../reference/api/index.md).