But like many other urban school systems, it simply doesn't have the money.

Precisely how the urban system worked is still open to speculation.

However, several studies show that it can describe existing urban systems.

How you do it in a large urban system, I am not sure.

The method was mainly applied to studies on urban systems.

Q. How frustrating is it to run the urban school system?

Infantry training is carried out on urban and provincial systems.

The loss is a dynamic, adaptive, and certainly essential urban system.

And violence in schools is significantly lower than in most urban systems.

The law could eventually be used against a dozen districts, including Philadelphia, one of the largest urban systems in the country.