diff --git a/BOOKSHELF b/BOOKSHELF
index f1866de..e4882e2 100644
--- a/BOOKSHELF
+++ b/BOOKSHELF
@@ -46,13 +46,11 @@ D: http://www.atmel.com/dyn/products/product_card.asp?PN=ATtiny24A
 
 N: A7131
 A: U10
-A: STEP-DOWN CONVERTER
-D: http://www.ait-ic.com/uploads//2010-07/09/_1278642893_dkkew3.pdf
+D: http://www.ait-ic.com/uploads/2010-07/09/_1278642893_dkkew3.pdf
 
 N: A7108
 A: U11,U12
-A: STEP-DOWN CONVERTER
-D: http://www.ait-ic.com/uploads//2010-03/17/_1268812841_xznfcv.pdf
+D: http://www.ait-ic.com/uploads/2010-03/17/_1268812841_xznfcv.pdf
 
 N: FAN4010
 A: U13
@@ -72,4 +70,4 @@ A: U18
 A: U19
 A: U20
 A: LOW-DROPOUT LINEAR REGULATOR 
-D: http://focus.ti.com/lit/ds/symlink/tps79325-q1.pdf
\ No newline at end of file
+D: http://focus.ti.com/lit/ds/symlink/tps79325-q1.pdf