Lipková, Michala 1985 Holis hybrid learning playbook. Best practice, tools, challenges, and opportunities of distributed learning addressing ecological and social challenges / aut. Michala Lipková, Predan Barbara, Lewis Greener, Maxim Dedushkov. -- 1. vydanie. -- [online] : Flowers for Slovakia, 2021. -- 37 s. -- ISBN : 978-80-972333-1-0. Predan Barbara. Greener, Lewis. Dedushkov, Maxim