@article{ZNSL_2000_267_a10,
     author = {A. Yu. Makovetskii},
     title = {Orientations of spines of homology balls},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {156--162},
     publisher = {mathdoc},
     volume = {267},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_267_a10/}
}