共 23 条
[1]
*AM MED ASS, 1977, HEAD PROT CYCL
[2]
CAIRNS H, 1943, BRIT MED J, V1, P591
[3]
CAIRNS H, 1941, BRIT MED J, V2, P465
[4]
DARE CE, 1978, DOTHS803679 US DEP T
[5]
DORRIS AL, 1978, IMPACT MOTORCYCLE HE, V1
[6]
ELLINGER M, 1976, ILLINOIS MOTORCYCLE
[7]
KOEHLER M, 1978, EVALUATION MOTORCYCL
[8]
LUMMIS ML, 1979, HS803959 DOT US DEP
[9]
LUMMIS ML, 1979, HS804018 DOT US DEP
[10]
*MN DEP PUBL SAF, 1979, 1978 INT REP