| Electromagnetic determination of soil water content: Measurements in coaxial transmission lines GC Topp, JL Davis, AP Annan Water resources research 16 (3), 574-582, 1980 | 7330 | 1980 |
| GROUND‐PENETRATING RADAR FOR HIGH‐RESOLUTION MAPPING OF SOIL AND ROCK STRATIGRAPHY1 JL Davis, AP Annan Geophysical prospecting 37 (5), 531-551, 1989 | 3111 | 1989 |
| Measuring soil water content with ground penetrating radar: A review JA Huisman, SS Hubbard, JD Redman, AP Annan Vadose zone journal 2 (4), 476-491, 2003 | 1245 | 2003 |
| Ground penetrating radar principles, procedures and applications P Annan Sensors and software 278, 2003 | 578 | 2003 |
| A review of Ground Penetrating Radar application in civil engineering: A 30-year journey from Locating and Testing to Imaging and Diagnosis WWL Lai, X Derobert, P Annan Ndt & E International 96, 58-78, 2018 | 565 | 2018 |
| Ground-penetrating radar AP Annan | 554 | 2005 |
| Ground penetrating radar workshop notes AP Annan Sensors & Software Inc., Ontario, Canada, 2001 | 546 | 2001 |
| Electromagnetic principles of ground penetrating radar AP Annan Ground penetrating radar theory and applications, 1-40, 2009 | 520 | 2009 |
| Acquisition and processing of wide-aperture ground-penetrating radar data E Fisher, GA McMechan, AP Annan Geophysics 57 (3), 495-504, 1992 | 470 | 1992 |
| Electromagnetic determination of soil water content using TDR: I. Applications to wetting fronts and steep gradients GC Topp, JL Davis, AP Annan Soil Science Society of America Journal 46 (4), 672-678, 1982 | 444 | 1982 |
| Impulse radar sounding in permafrost AP Annan, JL Davis Radio Science 11 (4), 383-394, 1976 | 374 | 1976 |
| GPR—History, trends, and future developments AP Annan Subsurface sensing technologies and applications 3 (4), 253-270, 2002 | 324 | 2002 |
| Examples of reverse-time migration of single-channel, ground-penetrating radar profiles E Fisher, GA McMechan, AP Annan, SW Cosway Geophysics 57 (4), 577-586, 1992 | 289 | 1992 |
| GPR methods for hydrogeological studies AP Annan Hydrogeophysics, 185-213, 2005 | 266 | 2005 |
| Ground-penetrating radar monitoring of a controlled DNAPL release: 200 MHz radar ML Brewster, AP Annan Geophysics 59 (8), 1211-1221, 1994 | 227 | 1994 |
| Ground penetrating radar survey design AP Annan, SW Cosway 5th EEGS Symposium on the Application of Geophysics to Engineering and …, 1992 | 225 | 1992 |
| Observed migration of a controlled DNAPL release by geophysical methods ML Brewster, AP Annan, JP Greenhouse, BH Kueper, GR Olhoeft, ... Groundwater 33 (6), 977-987, 1995 | 213 | 1995 |
| Radio interferometry depth sounding: Part I—Theoretical discussion AP Annan Geophysics 38 (3), 557-580, 1973 | 210 | 1973 |
| Electromagnetic determination of soil water content using TDR: II. Evaluation of installation and configuration of parallel transmission lines GC Topp, JL Davis, AP Annan Soil Science Society of America Journal 46 (4), 678-684, 1982 | 203 | 1982 |
| Practical processing of GPR data AP Annan Sensors and software, Ontario 400, 1999 | 200 | 1999 |
