Journal of research of the National Bureau of Standards 

 - Washington :  United States. National Bureau of Standards,  1968-1977 
 - v. 
<br/><br/><label>ISSN: </label>0098-8979 
 = Journal of research of the National Bureau of Standards. B, Mathematical sciences 
 = J. res. Natl Bur.Stand.. B, Math. sci. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATEMATICAS
<br/><br/><label>Universal Decimal Class. No.: </label>51