Bibliography For readers with an interest in further information, but limited time, a few key references are starred (*).

It remains a key reference due to the lack of similarly comprehensive studies using grassroots development specialists.

I squeezed out four key references with twenty-two hours of effort.

It is a key economic reference for government of all levels,investment companies and economic research institutions in China.

The Jahrhunderthalle became a key reference for the development of reinforced concrete structures in the 20th century.

The key references for most of the historical information listed in this article is:

The book of 1995 is the key reference for applied stochastic geometry.

Five key references have been selected for each of the following main research topics:

For knowledgeable readers this part can serve as a reminder; for those who wish to read further key references are given.

There were people he had to consult with, key references he had to check.