scholarly journals National estimates of lead based paint poisoning of children (estimated by Standard Metropolitan Statistical Area):

1971 ◽  
Author(s):  
Judith Gilsinn ◽  
Michael Thomas
1982 ◽  
Vol 14 (5) ◽  
pp. 591-601 ◽  
Author(s):  
R A Erickson

Traditional density models have used a single gradient to depict the employment distribution over metropolitan space. However, different processes have characterized city and suburban development, and suburban gradients are not simple extensions of central city ones. Analysis of employment data for the Baltimore standard metropolitan statistical area in 1974 indicates that differences in markets and transportation costs help to account for observed differences in city-suburban density gradients.


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