Morse, Marston <br/><br/>
Focal Sets of Regular Manifolds M     in E 
Marston Morse 
 - Tokya  Tokyo Press Co., LTD  1967 
 - 19 p  ill  25 cm 
<br/><br/> Contine bibliografie  Reprint from Journal of Differential Geometry,Vol.1, No.1 March 1967