fixed references

Author: mahrud

Bl2PPn.md

@@ -4,7 +4,7 @@ title: Bl2PPn
 ---
 
 ## $\mathrm{Bl}_2\PP^n$: the blow-up of $\PP^n$ at 2 points.
-All varieties in this class have the same secondary fan, but as the multiplicity of the Cox degrees increases, the $\Theta$-collection expands, and with it the Ext table exhibits more complex behavior. A result of Michalek ([1009.0821](http://arxiv.org/abs/1009.0821v3)) implies that when $n>20$, such varieties do not have strongly exceptional collections of line bundles.
+All varieties in this class have the same secondary fan, but as the multiplicity of the Cox degrees increases, the $\Theta$-collection expands, and with it the Ext table exhibits more complex behavior. Michalek proved in [[1009.0821]](http://arxiv.org/abs/1009.0821v3) that when $n>20$, such varieties do not have strongly exceptional collections of line bundles.
 
 {% include table.toric.html class='Bl2PPn' row_limit=1 varieties=site.data.Bl2PPn %}
 

HillePerling.md

@@ -5,7 +5,7 @@ title: Hille--Perling's Counterexample
 
 ## Hille--Perling's Counterexample to King's Conjecture
 
-We begin with Hirzebruch surface of type 2 and consider 3 consecutive blow-ups.
+We begin with Hirzebruch surface of type 2 and consider 3 consecutive blow-ups. Hille and Perling showed in [[arxiv:math/0602258]](https://arxiv.org/abs/math/0602258v2) that this toric variety does not have a strong exceptional collection of line bundles.
 
 {% include table.toric.html class='HillePerling' row_limit=1 varieties=site.data.HillePerling %}