@article{ZNSL_2013_415_a10,
     author = {A. V. Malyutin},
     title = {Pretrees and arborescent convexities},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {75--90},
     publisher = {mathdoc},
     volume = {415},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2013_415_a10/}
}