Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 45 checked references that resolve
resolves10.1186/1471-2466-9-51Effects of acute hypoventilation and hyperventilation on exhaled carbon monoxide measurement in healthy volunteers
resolves10.1038/ki.1997.324Quantitative analysis of ammonia on the breath of patients in end-stage renal failure
resolves10.1017/jsc.2012.1Pilot Study of the Use of Personal Carbon Monoxide Monitoring to Achieve Radical Smoking Reduction
resolves10.1016/j.snb.2009.12.027Long term stability of metal oxide-based gas sensors for e-nose environmental applications: An overview
resolves10.3390/s100605469Metal Oxide Semi-Conductor Gas Sensors in Environmental Monitoring
resolves10.1016/j.biortech.2014.09.106Upscaling of an electronic nose for completely stirred tank reactor stability monitoring from pilot-scale to real-scale agricultural co-digestion biogas plant
resolves10.1016/j.snb.2009.11.037Evaluation of fish spoilage by means of a single metal oxide sensor under temperature modulation
resolves10.1016/j.snb.2009.10.045Application of commercial automotive sensor manufacturing methods for NOx/NH3 mixed potential sensors for on-board emissions control
resolves10.1016/j.ijhydene.2008.10.033Reliability of commercially available hydrogen sensors for detection of hydrogen at critical concentrations: Part II – selected sensor test results
resolves10.1016/S0169-7439(02)00069-2Fuzzy inference system for sensor array calibration: prediction of CO and CH4 levels in variable humidity conditions
resolves10.1016/j.snb.2005.02.059Detection of diverse mould species growing on building materials by gas sensor arrays and pattern recognition
resolves10.3390/s110101105Advances in Electronic-Nose Technologies Developed for Biomedical Applications
resolves10.3390/s91007970Micro Sensor Node for Air Pollutant Monitoring: Hardware and Software Issues
resolves10.1109/TIM.2009.2012940Model and Experimental Characterization of the Dynamic Behavior of Low-Power Carbon Monoxide MOX Sensors Operated With Pulsed Temperature Profiles
resolves10.1016/j.snb.2007.08.029Reducing power consumption via a discontinuous operation of temperature-modulated micro-hotplate gas sensors: Application to the logistics chain of fruit
resolves10.1109/ICSENS.2005.1597715PuMaH - a temperature control and resistance read-out system for microstructured gas sensors based on PWM signals
resolves10.1016/j.aca.2018.03.005Multivariate estimation of the limit of detection by orthogonal partial least squares in temperature-modulated MOX sensors
resolves10.5772/33411Drift Correction Methods for Gas Chemical Sensors in Artificial Olfaction Systems: Techniques and Challenges
resolves10.1016/j.snb.2011.02.024Instability of metal oxide-based conductometric gas sensors and approaches to stability improvement (short survey)
The 15 references without a DOI — listed, not checked
no DOI — not checkedChansin, G., and Pugh, D. (2017). Environmental Gas Sensors 2017–2027, CISION.
no DOI — not checkedPouter, J. (2016). Smartphone Ownership and Internet Usage Continues to Climb in Emerging Economies, Pew Research Center.
no DOI — not checkedWHO (2010). WHO Guidelines for Indoor Air Quality: Selected Pollutants, WHO.
no DOI — not checkedEPA (2015). Criteria Air Pollutants. America’s Children and the Environment, EPA.
no DOI — not checkedmHealth: New horizons for health through mobile technologies
no DOI — not checkedA randomised study of SRL172 (Mycobacterium vaccae) in patients with advanced lung cancer treated with chemotherapy
no DOI — not checkedTest accuracy of smartphone-paired breathalysers: A validation study
no DOI — not checkedPadilla, M., Fonollosa, J., and Marco, S. (2013). Improving the Robustness of Odour Sensing Systems by Multivariate Signal Processing, IGI-Global.
no DOI — not checkedAMG AG (2015). AMS AS-MLV-P2 Air Quality Sensor, AMS AG.
no DOI — not checkedFigaro Engineering. Inc. (2012). Technical Information for Tgs2610, Figaro Engineering. Inc.
no DOI — not checkedWu, H., and Siegel, M. (2000, January 1–4). Odor-based incontinence sensor. Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference, Baltimore, MD, USA.
no DOI — not checkedRossi, M., and Brunelli, D. (2013, January 3–6). Ultra low power CH4 monitoring with wireless sensors. Proceedings of the 2015 IEEE Sensors Applications Symposium (SAS), Baltimore, MD, USA.
no DOI — not checkedF.I.S. Inc. (2017). Fis Gas Sensor SB-500-12, F.I.S. Inc.
no DOI — not checkedSensirion, A.G. (2017, November 12). Data Sheet SHT7x (SHT71, SHT75)-Humidity and Temperature Sensor IC. Available online: http//www. Sensirion. Com/en/products/humidity-Temperature/humidity-Sensor-sht75.
no DOI — not checkedEveritt, B., and Skrondal, A. (2002). The Cambridge Dictionary of Statistics, Cambridge University Press.
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