diff --git a/source/operators/crossover.ipynb b/source/operators/crossover.ipynb
index 611605b..588dd17 100644
--- a/source/operators/crossover.ipynb
+++ b/source/operators/crossover.ipynb
@@ -31,7 +31,7 @@
    "source": [
     "### Simulated Binary Crossover ('real_sbx', 'int_sbx')\n",
     "\n",
-    "Details about the crossover can be found in <cite data-cite=\"sbx\"></cite>. Real values can be represented by a binary notation and then a the point crossovers can be performed. SBX simulated this operation by using a probability distribution *simulating* the binary crossover.\n",
+    "Details about the crossover can be found in <cite data-cite=\"sbx\"></cite>. Real values can be represented by a binary notation and then the point crossovers can be performed. SBX simulated this operation by using a probability distribution *simulating* the binary crossover.\n",
     "\n",
     "A crossover object can be created by "
    ]