Hi!

Thank you for including the #steemstem tag in your post

Please be informed that there are certain guidelines for posts regarding STEM so I am inviting you to read this link for more information

Here you can find information about how to credit your images and I would like to inform you to be extra careful when it comes to using references. (Your first link is broken, and the second is no reference - there is no author name, date, publisher, location etc)

In case of any questions, feel free to join us Hive account@steemstem on discord or to take a look at the FAQs

Greetings,

Katerina