1. http://www.gettyimages.com/photos/johann-bernoulli?

excludenudity=true&sort=mostpopular&mediatype=photography&phrase=johann%20bernoulli - images 

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2. https://www.britannica.com/biography/Johann-Bernoulli - information 

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3. http://www.storyofmathematics.com/18th_bernoulli.html- information 

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4. http://www.famous-mathematicians.com/johann-bernoulli/- information

 

5. ​https://www.google.com/searchq=johann+bernoulli+math+contributions&espv=2&rlz=1CASMAI_enUS701US704&biw=1242&bih=574&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiNo6WyOTQAhXEwFQKHTA2DpYQ_AUIBigB#imgrc=Q8luhKymmsoaIM%3A  - information/images