Bergström, R. M. <br/><br/>
Studies Concerning the Summation of Single Fibre Responses to Skin Stretch in Frog Skin Nerves 

 - Helsinki :   Suomalainen Tiedeakatemia,   1961. 
 - 7 p. ;   18 cm. 
 - Annales Academiae Scientiarum Fennicae ;   81 .