ner_tags: O O O O B-Person I-Person I-Person O O O B-Dataset O O B-Software O O O O O O O O O O O O O O B-Person I-Person O O O O O O O O O B-Person I-Person O O O O O B-Model I-Model I-Model
tokens: We wish to thank Marc De Rosa for contributing the PFSS library to SolarSoft, and for helpful reponses to questions about the software. We also wish to acknowledge Figen Oktem for useful discussions regarding regularization in optimization problems, and Leon Ofman for similarly useful discussions of coronal MHD simulations.