https://docs.google.com/spreadsheets/d/118BxRLqnFml2ZRYji3xI_ksPPQ6IZt_ANWzrDtGtFTk/edit?usp=sharing
https://docs.google.com/spreadsheets/d/1n589R_iN5xKVTCZKqeB8IWHqDfGQpLqfiaI316e1_sA/edit?usp=drivesdk
http://nicktremoulis.pythonanywhere.com/