@article{10_4064_sm223_2_3,
     author = {B\"unyamin Sar{\i} and Konstantinos Tyros},
     title = {On the structure of the set
 of higher order spreading models},
     journal = {Studia Mathematica},
     pages = {149--173},
     year = {2014},
     volume = {223},
     number = {2},
     doi = {10.4064/sm223-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm223-2-3/}
}