1 of 35 checkable references need attention · checked 2026-07-22
At the dated check, the references listed below either did not resolve in
Crossref or DataCite, or carried a retraction notice. Each one is shown with the
registry record that put it there.
13 without a DOI — not checked. A reference
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References needing attention
marked retracted — notice via Crossref, record curated by Retraction Watch10.3390/sym12071122
RETRACTED: Application of Symmetry Law in Numerical Modeling of Hydraulic Fracturing by Finite Element Method
Integrated production logging tools approach for convenient experimental individual layer permeability measurements in a multi-layered fractured reservoir
New Mechanical Model of Slotting–Directional Hydraulic Fracturing and Experimental Study for Coalbed Methane Development
The 13 references without a DOI — listed, not checked
no DOI — not checked10.1016/j.egyr.2021.05.029_b4
no DOI — not checkedStress wave attenuation in isotropic damaged rocks
no DOI — not checkedStudies of two-dimensional liquid-wedge impact and their relevance to liquid-drop impact problems
no DOI — not checkedA progress report on ultra-high-pressure water-jet cutting underground: the future of narrow reef gold and PGE mining
no DOI — not checked10.1016/j.egyr.2021.05.029_b16
no DOI — not checkedNumerical simulation of rock fragmentation under the impact load of water jet
no DOI — not checkedAnalytic solutions of liquid-drop impact problems
no DOI — not checked10.1016/j.egyr.2021.05.029_b25
no DOI — not checked10.1016/j.egyr.2021.05.029_b27
no DOI — not checkedAnalysis of stress wave effect during rock breakage process by ultra-high pressure water jet
no DOI — not checked10.1016/j.egyr.2021.05.029_b35
no DOI — not checked10.1016/j.egyr.2021.05.029_b41
no DOI — not checkedApplication of implicit pressure-explicit saturation method to predict filtrated mud saturation impact on the hydrocarbon reservoirs formation damage
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