| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Observational Before—After Studies in Road Safety: Estimating the Effect of Highway and Traffic Engineering Measures on Road Safety | 978-O-O8-O43O53-9 (O-O8-O43O53-8) | 1997 |
Christian E. Hauer · Christiana E. Hauer · E.H. · Elena Hauer · Elisabeth Hauer · Elizabeth Hauer · Erich Hauer · Erwin Hauer · Ezra Hauer