diff --git a/articles/Cross-correlation - Wikipedia/Cross-correlation - Wikipedia.xopp.xml b/articles/Cross-correlation - Wikipedia/Cross-correlation - Wikipedia.xopp.xml
index cb09208..53c49fb 100644
--- a/articles/Cross-correlation - Wikipedia/Cross-correlation - Wikipedia.xopp.xml
+++ b/articles/Cross-correlation - Wikipedia/Cross-correlation - Wikipedia.xopp.xml
@@ -4,7 +4,6 @@
- to investigate
267.48571777 124.12182617 323.80781974 124.12182617
357.43951416 123.44583130 442.32898420 123.44583130
467.44500732 125.49694824 534.17380054 125.49694824
@@ -14,6 +13,29 @@
528.16571045 283.40579224 542.33862305 264.13464355
263.87579346 203.13952637 263.87579346 203.13952637
370.60308838 204.73757935 370.60308838 204.73757935
+ 78.57849121 117.80187988 171.96030458 117.80187988
+ 162.22763062 131.01455688 227.98241064 131.01455688
+ 46.67471313 148.09497070 226.05544775 148.09497070
+ 46.93252563 164.21539307 226.97007055 164.21539307
+ 46.52069092 180.99789429 89.24504335 180.99789429
+ 46.18017578 194.92501831 227.91126572 194.92501831
+ 46.18832397 215.47106934 80.57260132 213.15338135
+ 127.45416260 213.62695312 228.75970321 213.62695312
+ 44.34286499 230.52056885 226.53021271 230.52056885
+ 156.97259521 250.76489258 216.23257670 250.76489258
+ 44.39227295 266.98562622 143.16048241 266.98562622
+ 44.96420288 315.10263062 123.05338761 315.10263062
+ 114.77200317 324.82070923 226.49730756 324.82070923
+ 48.57684326 342.66192627 189.71574773 342.66192627
+ 274.46093750 381.18722534 421.39016505 381.18722534
+ 431.89593506 387.66854858 541.47244606 387.66854858
+ 251.92236328 400.14279175 544.40725375 400.14279175
+ 252.19702148 414.63638306 301.86120726 414.63638306
+ 338.80548096 407.32888794 531.95494012 407.32888794
+ 252.36242676 423.64596558 457.92291245 423.64596558
+ 265.92120361 415.03784180 265.92120361 211.66577809
+ 367.53582764 285.61862183 307.57263184 416.23706055
+ assuming cross-correlation computation process the value of the result looks correct