000 nam a22 4500
999 _c171848
_d171848
008 170412b xxu||||| |||| 00| 0 eng d
022 _a2193-8407
245 _aJournal of Homotopy and Related Structures(NBHM)
260 _aGermany
_bSpringer
_c01/03/2006
300 _av
362 _a01/03/2006
942 _cARTICLE
_s1