@article {GGP2016,
   author = {Gillette, Andrew and Gross, Craig and Plackowski, Ken},
   title = {Numerical studies of serendipity and tensor product elements for eigenvalue problems},
   journal = {Involve, a journal of Mathematics},
   volume = {11},
   number = {4},
   pages = {661--678},
   url = {},
   year = {2018},
}