Efficient algorithms for solving systems of ordinary differential equations for ecosystems modeling /

Mode of access: Internet.

Computer planning for efficient solid waste collection : [a condensation] /

"Condensation of Mathematical Analysis of Solid Waste Collection by David H. Marks and Jon C. Liebman."

Efficient separations and processing integrated program (ESP-IP).

February 1994.

Guidelines for residential oil-burner adjustments : oil-burner adjustment procedures to minimize air pollution and to achieve efficient use of fuel /

Mode of access: Internet.

Efficient investments in wastewater treatment plants.

Item 1005-C