canonicalizes numapde.bib [skip ci]

numapde.bib

@@ -25977,6 +25977,18 @@
   VOLUME = {11},
 }
 
+@ARTICLE{KroenerVexler:2009:1,
+  AUTHOR = {Kröner, Axel and Vexler, Boris},
+  PUBLISHER = {Elsevier BV},
+  DATE = {2009-08},
+  DOI = {10.1016/j.cam.2009.01.023},
+  JOURNALTITLE = {Journal of Computational and Applied Mathematics},
+  NUMBER = {2},
+  PAGES = {781--802},
+  TITLE = {A priori error estimates for elliptic optimal control problems with a bilinear state equation},
+  VOLUME = {230},
+}
+
 @ARTICLE{KroenerMuellerStrehlau:2015:1,
   AUTHOR = {Kröner, Dietmar and Müller, Thomas and Strehlau, Lena Maria},
   DATE = {2015},
@@ -44545,14 +44557,3 @@
   TITLE = {The Numerical Solution of Two-Factor Option Pricing Models},
   TYPE = {phdthesis},
 }
-@ARTICLE{KroenerVexler:2009:1,
-    AUTHOR = "Kröner, Axel and Vexler, Boris",
-    PUBLISHER = "Elsevier BV",
-    DATE = "2009-08",
-    DOI = "10.1016/j.cam.2009.01.023",
-    JOURNALTITLE = "Journal of Computational and Applied Mathematics",
-    NUMBER = "2",
-    PAGES = "781--802",
-    TITLE = "A priori error estimates for elliptic optimal control problems with a bilinear state equation",
-    VOLUME = "230"
-}