@article{10_4171_ifb_205,
     author = {Joachim Escher and Bogdan-Vasile Matioc},
     title = {A moving boundary problem for periodic {Stokesian} {Hele{\textendash}Shaw} flows},
     journal = {Interfaces and free boundaries},
     pages = {119--137},
     year = {2009},
     volume = {11},
     number = {1},
     doi = {10.4171/ifb/205},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/205/}
}