@article{10_4171_ifb_410,
     author = {Darya E. Apushkinskaya and Sergey I. Repin},
     title = {Thin obstacle problem: {Estimates} of the distance to the exact solution},
     journal = {Interfaces and free boundaries},
     pages = {511--531},
     year = {2018},
     volume = {20},
     number = {4},
     doi = {10.4171/ifb/410},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/410/}
}