1 files changed, 2 insertions, 0 deletions
diff --git a/pso.c b/pso.c
index 1ece9b4..66fc38a 100644
--- a/pso.c
+++ b/pso.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2020 Florian Fischer
 #include <assert.h>
 #include <math.h>
 #include <pthread.h>