6.68.3 Can you answer these questions?

6.68.3.1 references in biblatex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573108

I'm having trouble formatting the references. I have to prepare whole text using font 11 and single line spacing. Also I want to save space in references by removing new line when next bibitem is ... 
[biblatex]
 

asked by rpoleski https://tex.stackexchange.com/landing/r/digest?cta=user&id=229995 1 vote

6.68.3.2 Different watermark (objects) for certain pages

https://tex.stackexchange.com/landing/r/digest?cta=question&id=572706

Is it possible to load different watermark objects on certain pages? 
Let say, I would like an image watermarking my first page and text watermark for the rest of the pages. 
I am currently using the ... 
[watermark] [draftwatermark]
 

asked by Wilory Lu https://tex.stackexchange.com/landing/r/digest?cta=user&id=222046 1 vote

6.68.3.3 little per-mode option problem with siunitx

https://tex.stackexchange.com/landing/r/digest?cta=question&id=573111

Hi how can I define the per-mode option, that the unit in text is e.g. 50 N mm^{-2} and not 50 N/mm^2? I know, that I can use \si{N.mm^{-2}} but I want to make it automatically. 
\documentclass[12pt,... 
[siunitx]
 

asked by nico.wagner https://tex.stackexchange.com/landing/r/digest?cta=user&id=185561 1 vote