@misc{indiciae8240e2b2f989, title = {Matrix-free preconditioning for high-order H (curl) discretizations}, author = {Barker, Andrew T. and Kolev, Tzanio}, year = {2020}, doi = {10.1002/nla.2348}, url = {https://www.osti.gov/biblio/1835018}, note = {Source identifier: 1835018} }