3Glanzel W,Gzerwon H.A new methodological approach to bibliosraphy coupling and its application to national[J].regional and institutional level.Scientometrics,1996,2:195-221.
3Di Bartolo M C,Soeken K L.Appraisal,coping,hardiness,and selfperceived health in community-dwelling spouse caregivers of persons with dementia[J].Res Nurs Health,2003,26(6):445-458.