walker - Why is my menu order not working with wp_nav_menu? - WordPress Development Stack Exchange
Understanding the Walker Class
Redesigning WordPress Menus: Custom Walker Class
WordPress Custom Walker Menu - YouTube
Walker Menu WordPress per BootStrap Dropdown e Hover - minimamente
GitHub - sarn1/example-wordpress-menu-walker: A base template to demo a basic WP menu-walker in action. Solves the problem of tying in the menu created in WP with a responsive navigation capable of showing
menus - Split up wp_nav_menu with custom walker - WordPress Development Stack Exchange
How to Add Menu Descriptions in Your WordPress Themes