What do the names and times in brackets mean in the paper?

For example: (Hyson and Sanderson, 1945).

Quote Hyson and Sanderson's paper in 1945.

I thought it was dead. How did so many people die in this paper? Baidu came to Baidu and didn't find the answer. After asking the senior, come back and answer. If there is someone with the same problem as me, can you give me a compliment? O(∩_∩)O

Write a composition on the theme of "reading is bitter and happy"

Ni Ping's paper on programmed genes.

Four papers on new materials

Why is the establishment of the Communist Party of China (CPC) an epoch-making event in the history of China?

Kindness is a sword against greed.

Why do you say "doubt is the key to knowledge"

Du profile

How to pickle raw citron?

Honorary Award of Law School of Renmin University of China

Who are the Eight Masters in Tang and Song Dynasties? What are its main representative works and what are their historical functions? What is the end of their lives?