Terms like во-первых (firstly) and следовательно (consequently) organize logic.
If you are working through the exercises in the Bogdanova notebook, here are the core topics you should focus on to find the right answers:
Pay close attention to the placement of quotation marks and colons. 💡 How to use this for your "Gotovye Zadaniya"
Phrases like по словам автора (according to the author) attribute information to others.