The format of the files should be exactly indicated. All notations should be clearly defined in the text. Avoid abbreviations in the title and abstract. Use standard abbreviations. The full term for which an abbreviation stands should precede its first use in the text unless it is a standard unit of measurement.
Illustrations Provide an original and two copies of each illustration.
Figures must be printed using a laser printer. Line drawings for the figures should be of high contrast, suitable for direct reproduction. Avoid using dense shading for background. Use commas to separate units of measurement from the text. Different parts of a figure should be marked by lowercase letters in parentheses.