https://www.math.arizona.edu/~hermi/dido.html

 

https://faculty.math.illinois.edu/~laugesen/dido-isoperimetry-history.pdf

 

https://www.youtube.com/watch?v=8P3f7NzQXpE

 

https://rusmp.rice.edu/sites/g/files/bxs1546/f/The%20remarkable%20life%20of%20the%20isoperimetric%2

 

https://www.facebook.com/fisiclandia/videos/268718453241693/0problem.pdf

 

 http://matematica.unibocconi.it/sites/default/files/Bolle%20di%20sapone.pdf

 

https://math.berkeley.edu/~hutching/pub/bubbles.html

 

https://www.youtube.com/watch?v=W-_QNXu4GEA

 

 http://fisiclandia.blogspot.com/

https://www.youtube.com/watch?v=qJ5qBQB_PUU

 

http://ithaca.unisalento.it/nr-02_12_13/figalli.pdf

 

http://web.math.unifi.it/pls/laboratori/minimo_massimo/soluzioni2.pdf

 

 http://cvgmt.sns.it/HomePages/cm/calcvar2017/CV-Intro.pdf

 

http://staff.matapp.unimib.it/~leonardo/314/314.pdf