I'm looking to get a yeast strain based on W303 commonly used in replicative lifespan experiments, W303-K6001.
https://wiki.yeastgenome.org/index.php/Commonly_used_strains#W303-K6001
However, it doesn't seem easy to find. It's not in ATCC or other strain collections (Pfaff, ...). The source is not listed in any of the materials and methods sections of the articles that refer to it (http://rsob.royalsocietypublishing.org/content/2/8/120093 etc).
Is there a way to get this strain?