| 2005 | ISCAS | Error vector magnitude (EVM) measurements for GSM/EDGE applications revised under production conditions. | Markus Helfenstein, Ertan Baykal, Kurt Mller, Alexander Lampe |
| 2003 | ISCAS | Combined GMSK and 8PSK modulator for GSM and EDGE. | Peter Bode, Alexander Lampe, Markus Helfenstein |
| 2000 | ISCAS | Switched-current biquad using differential, double-sampling, forward/backward difference integrators. | Markus Helfenstein, Jari P. Curty, George S. Moschytz |
| 1999 | ISCAS | High-speed interfaces for analog, iterative VLSI decoders. | Markus Helfenstein, Felix Lustenberger, Andrea Loeliger, Felix Tarky, George S. Moschytz |
| 1999 | ISCAS | An analog VLSI decoding technique for digital codes. | Felix Lustenberger, Markus Helfenstein, Hans-Andrea Loeliger, Felix Tarky, George S. Moschytz |
| 1995 | ISCAS | 90Db, 90MHz, 30m W OTA with the Gain-Enhancement Implemented by One and Two Stage Amplifiers. | Markus Helfenstein, Qiuting Huang, George S. Moschytz |
| 1995 | ISCAS | Direct Analysis of Multiphase Switched-Current Networks Using Signal-Flow Graphs. | Markus Helfenstein, Arnold Muralt, George S. Moschytz |