@article{10_2140_agt_2003_3_147,
     author = {Wise, Daniel T},
     title = {A flat plane that is not the limit of periodic flat planes},
     journal = {Algebraic and Geometric Topology},
     pages = {147--154},
     year = {2003},
     volume = {3},
     number = {1},
     doi = {10.2140/agt.2003.3.147},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2003.3.147/}
}