In the episode Sheldon takes a job as a paper boy to pay for the repairs of a refrigerator he dismantled.
: He earned roughly $7.69 per week (about 19 cents per customer) to pay back the $200 repair bill, which he estimated would take about six months. Academic "Papers" and Studies Young Sheldon 34...
: He delivers newspapers on a bicycle, which he has to learn to ride first. In the episode Sheldon takes a job as
: Delivering 40 newspapers daily proved to be more physically and mentally taxing than Sheldon expected, leading to a memorable scene where he is seen exhausted and struggling with the weather and local dogs. : Delivering 40 newspapers daily proved to be
If you are referring to a scientific paper or academic work associated with Sheldon: Trivia - Young Sheldon - IMDb