A priori, we all think that low-cost or low-cost airlines will not be on this list and that the most expensive and luxurious lines could be the best. To avoid subjective judgments and personal assessments we have thought that the...
A priori, we all think that low-cost or low-cost airlines will not be on this list and that the most expensive and luxurious lines could be the best. To avoid subjective judgments and personal assessments we have thought that the...