Determining average tuition costs is difficult, since rates vary greatly among institutions, and some schools even fluctuate rates per semester. U.S. News & World Report ranks public and private engineering graduate schools annually based on the quality of the program, teachers and student outcomes.
Et al. is defined as an abbreviation for the Latin phrase et alia which means and others.. An example of et. al. used as an abbreviation is in the sentence, The article was written by Smith, Jones, Paul, et al. which means that Smith, Jones, Paul and others wrote the article. Origin of et al.
English - US. If pushed, I would put the 's with Johann: Johann's et al. findings. I would not attach it to et al., because al. is the abbreviation of a Latin word, and Latin doesn't form the possessive by 's. I would far prefer to get around the question by writing: the findings of Jahann et al. Dec 1, 2009.