<https://www.udemy.com/course/python-3-plus-python-desde-cero-data-analysis-y-matplot/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.udemy.com/course/python-3-plus-python-desde-cero-data-analysis-y-matplot/?couponCode=BESTPRICE_JUL2022_2>