link do prezentacji: https://docs.google.com/presentation/d/1AthCZjBC8K0dNvj497yWP11gUZPZynUogUyjmOxaVNM/edit#slide=id.gefb8c78853_0_0
link do prezentacji: https://docs.google.com/presentation/d/1AthCZjBC8K0dNvj497yWP11gUZPZynUogUyjmOxaVNM/edit#slide=id.gefb8c78853_0_0