Koch, H., Rüland, A., & Shi, W. (2015). The variable coefficient thin obstacle problem: Optimal regularity and regularity of the regular free boundary. Arxiv.
Chicago Style (17th ed.) CitationKoch, Herbert, Angkana Rüland, and Wenhui Shi. "The Variable Coefficient Thin Obstacle Problem: Optimal Regularity and Regularity of the Regular Free Boundary." Arxiv 2015.
MLA (9th ed.) CitationKoch, Herbert, et al. "The Variable Coefficient Thin Obstacle Problem: Optimal Regularity and Regularity of the Regular Free Boundary." Arxiv, 2015.
Warning: These citations may not always be 100% accurate.