Sanmartín, Juan R. <br/><br/>
O botafumeiro   : Parametric pumping in the Middle Ages 
/ Juan R. Sanmartín 
 - Kalamazoo   : American Association of Physics Teachers  , 1984 
 - 937-945 p.   ; 28 
<br/><br/> Separata de: American Journal Physics. Vol. 52, n.10 (1984) 
<br/><br/><label>Universal Decimal Class. No.: </label>53.01:739.1:726.6(460111Sant)(0.036.6)