Kira gives a brief overview of the manufacturers B&M and Intamin and uses data to compare them.

• https://www.intamin.com/company/about-us/ 

• https://en.wikipedia.org/wiki/Bolliger_%26_Mabillard#Notable_roller_coasters 

• https://grokipedia.com/page/Bolliger_%26_Mabillard#roller-coaster-types 

• https://en.wikipedia.org/wiki/Intamin#Roller_coasters 

• https://rcdb.com/