@article{10_2140_agt_2008_8_563,
     author = {Lee, Jong Bum and Zhao, Xuezhi},
     title = {Nielsen type numbers and homotopy minimal periods for maps on 3{\textendash}solvmanifolds},
     journal = {Algebraic and Geometric Topology},
     pages = {563--580},
     year = {2008},
     volume = {8},
     number = {1},
     doi = {10.2140/agt.2008.8.563},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2008.8.563/}
}