@article{lin317797,
    title   = {Evidence for recombination between a sialidase (nanH) of Actinomyces naeslundii and Actinomyces oris, previously named 'Actinomyces naeslundii genospecies 1 and 2'.},    
    author  = {Do T, Henssge U, Gilbert SC, Clark D, Beighton D.},    
    journal = {FEMS Microbiol Lett},    
    year    = {2008},    
    doi     = {10.1111/j.1574-6968.2008.01336.x},    
    pmid    = {18823396}        
    }
    @article{lin317798,
    title   = {Emended description of Actinomyces naeslundii and descriptions of Actinomyces oris sp. nov. and Actinomyces johnsonii sp. nov., previously identified as Actinomyces naeslundii genospecies 1, 2 and WVA 963.},    
    author  = {Henssge U, Do T, Radford DR, Gilbert SC, Clark D, Beighton D.},    
    journal = {Int J Syst Evol Microbiol},    
    year    = {2009},    
    doi     = {10.1099/ijs.0.000950-0},    
    pmid    = {19244431}        
    }