@article{DuUl10,
  author = {{D}ung, {D}inh and {U}llrich, {T}ino},
  year = {2011},
  volume = {163},
  number = {11},
  pages = {1590--1605},
  title = {{W}hitney type inequalities for local anisotropic
		  polynomial approximation},
  journal = {Journ. Approx. Theory},
  annote = {journal},
  pdf = {https://www.tu-chemnitz.de/mathematik/ang_analysis/Publications/DuUl10.pdf}
}