I have made a further research on alternative rock, recently. Before mentioning what I've found, I'd like to clarify that I support the inclusion of pop, as well as power pop (sourced somewhere above in the discussion) and pop rock (The A.V. Club source, already cited in the article). I've found this print source , which states: "Garbage's self-titled debut album has an impressive swirl of acoustic and electric guitars, keyboards and swanky pop hooks that actually push alternative rock in a  
 new direction." What are your opinions on this? Would this be a valid/useful source to be included in the prose or infobox? 

 Also, I found this source , which can be included in the prose. I'm not sure how to precisely do it, though (especially when I am on mobile, which makes editing harder and more complex).