References

For pictures used

Horst Schulz from Berglangenbach

For FREE ICONS used

Icons created by Freepik from www.flaticon.com

Icons created by Nikita Golubev from www.flaticon.com

Icons created by Good Ware from www.flaticon.com

Icons created by Those Icons from www.flaticon.com

Icons created by Freepik from www.flaticon.com